Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Healing Springs that once ran red with soldiers' blood.

Exotic feline breeding compound and conservation center.

The curios of pharmacist and collector Henry Wellcome.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A haunting collection of the vanished and disappearing natural world.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

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

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

A museum dedicated to the alleged Roswell Incident.

The remains of diamond fever taken over by the desert.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The most alien-looking place on Earth.

Bioluminescent firefly squid light up this Japanese fishing port.

Natural time capsule containing an alien ecosystem.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Tubing through a cave lit with glowworms is a magical underground experience.

A modern day curiosity cabinet.