One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

An enormous, inside-out glass globe built in 1935.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Slather on the history at an exhibition dedicated to this Russian luxury.

A 550-square-meter micro-nation off the coast of Britain.

This small Catskills village has six independent bookstores and more bookshops than restaurants.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

Built by the patriotic residents of Boonsboro in a single day.

America's first federal monument.

The narrowest house in America is seven feet of pure spite.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

A monument to the sheer amount of oddities one can collect over a lifetime.

This multi-story wooden waterpark offers homemade thrills.

Burial site more than 300 years old.

This sinkhole is disguised as a pond and named after the man who stumbled upon it.