Hoover Dam, Nevada/Arizona Border
Tel: 866 730 9097
Concierge.com's insider take:
The only Nevada image as iconic as the Strip is the mighty Hoover Dam in Black Canyon, an architectural marvel that is awesome to contemplate, even after seven decades. The dam, about 30 miles southeast of the Strip, blocks the Colorado River with a wall of 4.36 million cubic yards of concrete that stands 726 feet high and is 1,244 feet long and 660 feet thick at the base. Those not fascinated by the science of electricity may find the Discovery tour a yawn (though one has to suffer through it to get inside the dam); just walking around the area is enough for most. Bring water—it's hot out here.
Visitor center open daily 9 am to 6 pm. Last tour of the day is at 5:15 pm in summer, 4:15 pm in winter.