An enchanting work of outsider art, full of whimsical sculptures and carvings.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

This home is decked out like a psychedelic explosion of colors and bowling balls.

One man's collection of found art, sculpture, and ephemera adorns his two side-by-side homes.

From atop a hill at the center of Cape Town, a cannon has been signalling the time since 1806.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.

The most accurate timepiece in the world.

The culprit who accidentally lit this 3,500-year-old tree on fire stated "I can't believe I burned down a tree older than Jesus."

A Mars simulation in the southern Utah desert.

The clock that sets them all.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

A remarkably opulent mansion with a tragic history.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

A Victorian-style home known as the “Castle on the Hill.”

The world's first time capsule lies behind a welded steel door in Atlanta.

3/4-scale model of the White House in Atlanta, Georgia.

Giant instrument-shaped home in Fayetteville, Georgia.

Eclectic architecture in the woods of New York.

A bizarre house filled with an astounding array of collections.

Forever immortalized in concrete, this Simpsons etching was crafted by show creator Matt Groening.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

Live long and prosper in Tennessee.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.