ELIGIBILITY

NO PURCHASE OR INTERNET ACCESS IS NECESSARY. A PURCHASE WILL NOT INCREASE YOUR CHANCES OF WINNING. This sweepstakes is open only to legal residents of the United States (excluding residents of Puerto Rico) who are at least 18 years old at the time of entry. Entries are limited to individuals only; commercial enterprises and business entities are not eligible. Employees or contract employees of sponsor, NGHT, Inc., d/b/a Nationalgeographic.com (the "Sponsor"), its affiliates, subsidiaries, agents, and parents and their immediate families or persons living in the same household of such individuals, are ineligible. SWEEPSTAKES IS VOID IN PUERTO RICO AND WHERE PROHIBITED BY LAW.

SCHEDULE

The sweepstakes begins at midnight eastern daylight time (EDT) on May 15, 2006 , and ends at 11:59 p.m. EDT on August 15, 2006. Online entries must be received by 11:59 EDT August 15, 2006 Mail-in entries must be postmarked by August 15, 2006 and received by August 24, 2006, (one week later).

HOW TO ENTER

You can enter online or by mail. There is a limit of one (1) entry per person, household, or email address, regardless of how the entry is made. Subsequent entries will be disqualified. If you enter online, you can increase your chances of winning by providing up to five (5) friends' email addresses to tell about the sweepstakes when prompted to do so on screen after you submit your online entry. For each email address you provide, you will receive an additional entry in the sweepstakes, up to a maximum of six (6) entries. If you enter by mail, you will automatically receive the equivalent of six (6) entries when you enter.

To enter online, go to www.nationalgeographic.com/greatjourneys, click in the "Sweepstakes" section, and then follow the instructions. You must complete all required data on the entry form in order for the sweepstakes entry to be valid.

To enter by mail, print your first and last name, complete address, city, state, zip code, daytime telephone number, date of birth, and email address (if available) on a three-by-five-inch card. Put the card in an envelope, affix first-class postage, and send it to:


All entries become the property of Sponsor. They will not be returned or acknowledged. Sponsor is not responsible for lost, late, misdirected, mutilated, incomplete, illegible, or postage-due mail or email, or for any computer-related, online, telephonic, or technical malfunctions that may occur. Entries are void if they are in whole or in part illegible, incomplete, damaged, irregular, altered, counterfeit, produced in error, or obtained through fraud or theft. By entering you agree to be bound by these Official Rules. Online entries will be declared made by the authorized account holder of the email address submitted at the time of entry. "Authorized account holder" is defined as the natural person who is assigned to an email address by an Internet access provider, online service provider, or other organization (e.g., business, educational institution, etc.) that is responsible for assigning email addresses for the domain associated with the submitted email address.

If the potentially winning entry is an Internet or other computer entry, potential winner may be requested to provide Sponsor with proof that the potential winner is the authorized account holder of the email address associated with the winning entry.

PRIZE

One (1) Grand Prize winner will be selected. The Grand Prize consists of attendance for the winner and five guests at the National Geographic Expeditions "Winter Wildlife in Yellowstone" in Yellowstone National Park, Montana, from Dec. 26, 2006 - Dec. 31, 2006 ("Expedition"), as described in the National Geographic Expeditions catalog (see next paragraph for details). The Grand Prize also includes the following: the winner and five guests will be flown into Bozeman, Montana on Tuesday, Dec 26th from the major airport closest to winner's home. Upon completion of the trip in Yellowstone, the winner and five guests will enjoy a private 1 and ½ day tour in Yellowstone in a Mercedes-Benz vehicle and then driven to Bozeman, for return flight home. The Expedition includes local transportation within Yellowstone, accommodations for six (6) nights, and meals as indicated in the itinerary. Approximate Retail Value ("ARV") is $21,000. Tips, taxes and all other items not stated herein or in the National Geographic Expeditions catalog description of the Expedition are the sole responsibility of the winner. Prize cannot be exchanged for cash. No prize transfer, assignment or substitution by winner permitted. Sponsor reserves the right to substitute prize in which case a prize of equal or greater value will be awarded. The winner's participation in the Expedition will be subject to the Terms and Conditions and Responsibility Statement in the National Geographic Expeditions catalog.

A detailed description of the Expedition is available at:
www.nationalgeographicexpeditions.com/519.html or by writing to: Nationalgeographic.com, Registration Sweepstakes, Attention: K. Parham, 1145 17th Street, NW, Washington, DC 20036-4688.

SELECTION OF THE WINNER

Random selection of the winner will occur on or about August 28, 2006 from among all eligible entries received. Prize drawing will be conducted at National Geographic, 1145 17th Street, NW, Washington, DC 20036-4688. The Grand Prize winner will be notified by email or regular mail on or about August 28, 2006. Prize will be awarded. Odds of winning depend on the number of eligible online and mail-in entries received.

REDEMPTION AND VERIFICATION

To redeem prize, winner must respond within ten (10) days of prize notification. Response may be by email to kparham@ngs.org or by mail to Nationalgeographic.com, Registration Sweepstakes, Attention K. Parham, 1145 17th Street, N.W., Washington, DC 20036-4688. Winner may not alter the duration or the dates of the trip, as determined by Sponsor. Winner will be required to execute and return (1) an affidavit of eligibility and liability release; (2) a personal publicity release allowing use of his or her name, voice and likeness for promotional purposes, where legal; and (3) a license granting Sponsor and Mercedes-Benz USA, LLC and their affiliates and licensees a royalty-free perpetual, non-exclusive license to reproduce, in any and all media, any photographs taken by winner during the trip for editorial, trade or promotional purposes. All forms must be signed and returned within the time frame set forth by Sponsor or the prize will be deemed forfeited and a substitute winner will be selected. All travel companions will be required to execute a liability release form releasing NGHT, Inc., Mercedez-Benz USA, LLC and their affiliates and subsidiaries from liability arising out of their participation in the Grand Prize trip.

All prize claims are subject to verification and compliance with the official rules.

RIGHT TO CANCEL OR SUSPEND SWEEPSTAKES

If for any reason the sweepstakes, including the online segment of the sweepstakes, is not capable of running as planned, due to infection by computer virus, bugs, tampering, unauthorized intervention, fraud, technical failures, or any other causes beyond the control of Sponsor that corrupt or affect the administration, security, fairness, integrity, or proper conduct of this sweepstakes, the Sponsor reserves the right, at its sole discretion, to disqualify any individual(s) who tamper with the entry process, and/or to cancel, terminate, modify, or suspend the sweepstakes.

LIMITATION ON LIABILITY

Sponsor assumes no responsibility for any error, omission, interruption, deletion, defect, or delay in operation or transmission; communications line failure; theft or destruction of or unauthorized access to sweepstakes entries or entry forms; or alteration of entries or entry forms. Sponsor is not responsible for any problems with or technical malfunction of any telephone network or lines, computer online systems, servers or providers, computer equipment, software, failure of any email or mailed-in entry to be received on account of technical problems or traffic congestion on the Internet or at any Web site, or any combination thereof, including any injury or damage to participants' or any other persons' computers related to or resulting from participation or downloading any materials in this sweepstakes.

CAUTION: ANY ATTEMPT BY ANY PERSON TO DELIBERATELY DAMAGE ANY WEB SITE OR UNDERMINE LEGITIMATE OPERATION OF THE SWEEPSTAKES IS A VIOLATION OF CRIMINAL AND CIVIL LAWS. SHOULD SUCH AN ATTEMPT BE MADE, SPONSOR RESERVES THE RIGHT TO SEEK DAMAGES FROM ANY SUCH PERSON TO THE FULLEST EXTENT PERMITTED BY LAW.

Any difference between actual costs and ARV will not be awarded. Actual travel dates are subject to Sponsor's discretion and conditions outside of Sponsor's control. Travel, including seat selection, and accommodations are subject to availability and blackout periods. The Grand Prize trip may not be combined with any other offer. Regulations and conditions may apply. In the event that Grand Prize winner is unable to travel on the scheduled trip date, Sponsor reserves the right to select an alternate winner. Grand Prize winner will be responsible for all necessary travel authorizations and for any travel insurance. By accepting the Grand Prize, Grand Prize winner represents that he/she understands that travel, whether in civilized or remote areas and whether by plane, automobile, boat, raft, or other conveyance, or by foot, on land or water, and in the air, contains some inherent element of risk of accident, illness, injury, loss or death, which may be caused by negligence, forces of nature, wild animals or other agencies, known or unknown. Grand Prize winner represents that they recognize that such risks may be present at any time before, during and after the trip.


CONDITIONS OF PARTICIPATION

By participating, participants agree to release, discharge, and hold harmless Sponsor and Mercedes-Benz USA, LLC and their respective partners, affiliates, parents, subsidiaries, advertising agencies, agents and their employees, officers, directors, and representatives from any liability, claims, losses, and damages arising out of their participation in the sweepstakes or any sweepstakes-related activities and the acceptance, use, misuse, or possession of any prize received in this sweepstakes. Participants also agree (a) to be bound by these official rules; (b) that the decisions of Sponsor are final on all matters relating to the sweepstakes; and (c) if he/she wins, to the use of his/her name and or likeness for advertising and promotional purposes without compensation (except in Tennessee and where prohibited by law) and upon request, to provide consent to such use in writing.

All federal, state and local taxes, fees and surcharges on prize are the sole responsibility of the Grand Prize winner. If winner declines prize or is unavailable for prize fulfillment, an alternate winner will be selected at random from all remaining eligible entries.

GENERAL INFORMATION

Sponsor reserves the right to use any and all information related to the sweepstakes, including information on entrants obtained through the sweepstakes (except for entrants from the State of Tennessee), for marketing purposes or any other purpose, unless prohibited by law.

WINNERS LIST

For the name of winner after August 30, 2006 send a separate self-addressed, stamped envelope to Sponsor: Nationalgeographic.com, Great Journeys Family Sweepstakes Winners, Attention: K. Parham 1145 17th Street, NW, Washington, DC 20036-4688 (Residents of Vermont need not include return postage).

NOTICE TO INDIVIDUALS: REMOVAL FROM MAILING LIST: Any individual (or other duly authorized person) may elect to exclude the name and address of that individual from all lists used by Sponsor to mail skill contests or sweepstakes. To elect to have an individual's name excluded from all such lists, submit a removal request in writing to: Nationalgeographic.com, Registration Sweepstakes, Attention: K. Parham 1145 17th Street, NW, Washington, DC 20036-4688. This notification system may be used to prohibit mailing of all skill contests or sweepstakes by Sponsor to such individual.

SHORT FORM RULES

To obtain full Official Rules, go to www.nationalgeographic.com/greatjourneys. PURCHASE IS NOT NECESSARY AND WON'T INCREASE CHANCES OF WINNING. Open to U.S. residents (excluding Puerto Rico) 18 years or older. Employees of Sponsor NGHT, Inc., d/b/a/ Nationalgeographic.com ("Sponsor") and related companies (and their families and households) are ineligible. Sweepstakes ends August 15, 2006. To enter, go to www.nationalgeographic.com/greatjourneys, click on the "Sweepstakes" section and follow the directions, or print your first and last name, complete address, city, state, zip code, and daytime telephone number, date of birth, and email address (if available) on a 3 x 5 inch card, place in an envelope, affix first-class postage, and send to Nationalgeographic.com Registration Great Journeys Sweepstakes, Attn: Scott Kirby, EFXMEDIA, 2300 South Ninth Street, Suite 136, Arlington, VA 22204. One Grand Prize: National Geographic Expeditions trip for winner and five guests to Yellowstone National Park, Montana from Dec. 26, 2006 - Dec. 31, 2006 (ARV: $21,000). Conditions and restrictions apply.

VOID IN PUERTO RICO AND WHERE PROHIBITED.