The flow from this waterfall sometimes comes out of springs below its rim.

A large lava tube that can be walked through with no special equipment.

A little-known, but surprisingly large waterfall on the Little Truckee River in the northern Sierra Nevada.

Bits and pieces from the ill-fated Donner Party's winter cabins.

This large chunk of dark rock is a relic from an ancient volcanic eruption.

Decor at “Nevada’s Oldest Thirst Parlor” includes Raquel Welch's brassiere hanging from a stuffed moose head.

The museum is housed inside the historic 1863 Carson City Mint.

A charming easy-to-miss sculpture garden filled with whimsical and thought-provoking metal sculptures.

A tribute to the disposable cups that were once manufactured here, this 68-foot-tall statue would be difficult to throw away.

Abandoned bridge hidden deep in the San Gabriel Mountains.

The Route 66 institution that inspired Taco Bell also served as an important headquarters for Mexican-American social movements.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

This stately structure has been abandoned for half a century.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

There aren't too many operational funiculars around, but Pittsburgh has two!

Visit a church sculpted from hardened lava.

Home of a French nobleman's short-lived attempt at raising cattle in the Badlands of North Dakota.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

This simple badlands butte is the highest point in North Dakota and may be the only high point to charge admission.

The legendary court where emerging basketball players gain their street cred.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

A semi-scholarly approach to sex.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.