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

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

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

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

100 years later, they're still down there.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

A painfully obvious spy house sits right across the street from the Russian Embassy.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

America's post-nuclear-attack chambers of Congress.

The only recreation of William Shakespeare's indoor playhouse.

Meet manatees face-to-face at this zoo for native species.

A haunted hill that supposedly defied gravity.

Florida castle built with aluminum printing plates.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

The snowbirds here are circus sideshow performers.

Remnants of a storybook amusement park hidden behind a strip mall.

Eighteen miniature death-scene dioramas.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Dozens of padlock-trees along the Moscow River.