This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

One of Philadelphia's largest murals resides hidden under this bridge.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

A curious building honoring past and current members of a historic musical comedy troupe.

The oldest surviving botanic garden in the United States.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Where America's first doomsday cult awaited the end of the world.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Ancient pueblos built into the base of a natural canyon wall.

A stealthy Apache hideaway that became the haunting site of a mass grave.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Most-visited and most-photographed slot canyon in the American Southwest.

This unique competition celebrates an American Indian and Canadian First Nation cultural tradition.

Inside this store, a mysterious statue draws visitors from the world over.

The stone-covered graves lie within the ruins of an Old West ghost town.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

A former department store turned into a quirky restaurant.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

The first permanent memorial to a unique secret weapon of World War II.