An English brewery transported to North Korea.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

A very classy 1920s-era bar right in Grand Central Station.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

A hidden alley in urban Baltimore is a haven for graffiti artists.

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Dramatic river bend surrounds a natural red-rocked pedestal.

The sign at the garden gate reads: "These Plants Can Kill."

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.