The Radar: New Napa Valley Welcome, Hotel Food Carts, Taxi Cab Guide

• Napa Valley debuted its downtown Welcome Center this month. The new 2,400-square-foot high-tech center is aiming to go “print-on-demand.” The center is equipped with television screens and iPads to display information and those wanting to take brochures on the road will soon be able to scan QR codes to “bump” information right onto their mobile device. Download the Visit Napa Valley app, GPS-enabled to help visitors navigate to wineries, restaurants, hotels, and spas. [The Napa Valley]

• Forget the mini bar, the best way to get a snack during your next hotel stay is from a food trolley. The latest hotel trend, food trolleys dispense everything from cocktails to candy bars. [In Transit]

• Taxi cab culture is different in every city you visit, but here are a few basic tips useful on any international trip. [Go See Write]

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: Mike Zukowski/My Shot