11.   An Egyptian was killed and five Britons injured in the blast after a nail bomb was dropped from a bridge onto their tour bus in Cairo.

12.   Although tour buses roll through small towns and tourism bureaus stay busy, this remains a rural, working world.

13.   An hour of waiting is rewarded when a tour bus appears through the shimmering heat on the asphalt horizon.

14.   And Jews of North African descent flock there in tour buses,

15.   And we arrived to find most of the merely two dozen or so parking spaces empty and not a tour bus in sight.

16.   And, of course, there are the tour buses.

17.   Approaching Dog Town, Mejia slows the tour bus.

18.   Arne Svenson photographed the Excalibur Hotel in Las Vegas, a castle lifted straight from an illustrated fairy tale, with good parking space for tour buses.

19.   As I was pulling into the parking lot at the Step Pyramid of Sakkara, a tour bus was pulling out.

20.   As part of its goal to increase tourism from the United States, Mexico made it easier for U.S. tour buses to operate in Mexico.