The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

A giant Troll lurks under one of Seattle's oldest bridges.

The national park was once a plantation estate.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A man's home is his castle.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

This public space is speckled with the eerie remnants of a defunct amusement park.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

Jail from the 19th century that was built by inmates.