Mysterious 500-year-old tapestries depict a unicorn hunt.

A mysterious castle built as a monument to lost love.

Private collection of art inspired by cabinets of curiosity.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

See massive fossils that are over 200 million years old in northeastern Arizona.

Rustic natural hot springs in the deciduous rain forest.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

A reproduction of earth's many biomes.

A whimsical village of unique treehouses resides in a Washington forest.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This lab's maddening silence is good for business but bad for sanity.

Tour the sci-fi-esque reality of governmental disease management.

The magic's in the hole!

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

A replica that won't float away.

San Francisco's newly reopened hands-on science museum.

Make your reservation to have coffee with some kitties.

These eerie outliers of the lightning bug family glow a mysterious blue color.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.