Small shop offering mail-order rare and exotic plants.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This small collection of rare books was uniquely locked up for safe keeping.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

The remains of the great moral philosopher reside in a university in London.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Hidden beneath the streets of London is a secret subway that only carried mail.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

A beautiful young girl said to have been buried alive in her coffin…

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Seller of surplus nuclear research materials.

A museum dedicated to the alleged Roswell Incident.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A museum devoted entirely to the rattlesnakes and snake-related art.

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

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A warm desert spring holds one of the rarest species on earth.