A man-made island in scenic San Francisco Bay.

There’s a hidden military meme engraved on the World War II Memorial.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Yo, Adrian!

Community bookshelf of 25-foot-tall book spines.

See six states, pickled freaks, rocks, and antiques.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Its unique collection details the history of the state's svelte railroads.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

This replica of the Greek structure is in the heart of Nashville.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A dilapidated dock tells the story of Titanic's missed arrival.