The Radar: How to Prepare for a RTW Trip, Fleeing Romans, Foursquare Hotel Rewards

• Immunizations? Check. Visas? Check. Copy of Passport? Check. Ticking these essential items off your ‘to do’ list before heading out on a round-the-world trip will minimize headaches down the road. [SpunkyGirl Monologques]

• Colosseum without the crowds? Thousands of people were reported to have left or avoided Rome yesterday based on a prediction by (now deceased) seismologist Raffaele Bendandi that an earthquake was to devastate the city on May 11, 2011. [BBC]

• Foursquare has partnered with Starwood Preferred Guest to offer loyalty points (and a chance to win a free night stay or resort getaway) to guests who ‘check-in’ with a confirmed reservation to one of Starwood’s 1,000-plus hotels and resorts. [Foursquare]

Got Radar? Follow us on Twitter @NatGeoTraveler and tag your favorite travel stories from the web #ngtradar. Check back in the morning for our daily roundup.

Photo: JorEl Zajatz/My Shot