Odd outsider art installations surround a Gold Rush-era ghost town.

A strange house built only at night, with rumored mystic inspiration.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Cat art as far as the eye can see.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Stunning wetlands ablaze with pink lotus flowers.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

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

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

These aggressively sustainable art homes look like something out of 1970's science fiction.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The history of this futuristic crypt-turned-temple is as curious as its facade.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.