The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

A humid oasis combines recreation with exploration in a unique underwater cavern.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

An impressive collection of dollhouses and an homage to the frog-leg canning industry.

Site of a former hidden treehouse in New Orleans.

A little piece of Paris in the sultry south of the U.S.

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

A snapshot of the city's fascinating voodoo culture.

The final resting place of New Orleans' most famous voodoo priestess.

The curiosities and wonders of pharmacy in a delightful historic building.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A living time capsule of the 1960s Richardson Bay water-front.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A monument to the love people have for their pets.

A collection of 20th-century automata, penny arcade games, and musical contraptions.