A series of five defunct panopticon prisons in Cuba.

A science teacher's dream.

360-degree virtual reality chamber physically immerses scientists into their data.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Home to the world's oldest functioning orrery.

Cold storage for agricultural biodiversity.

Rusting ships sit in a desert where a sea used to be.

Legendary prop shop filled with one man's collection of scientific curiosities.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

A museum, art project, and institution that demands we look at the world around us in a strange new way.

England's most notorious suicide spot.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

The world's second-largest sundial, made entirely out of stone.

The ancient tomb acts as a calendar that keeps perfect time.

An ancient Viking village in North America that predates Columbus by 500 years.

The abandoned village of Skarð aptly illustrates the idiom "Don't put all your eggs in one basket."

World's largest herd of white deer populate a former U.S. Army depot.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

Explore 10 acres of environmental sculptures.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

A bizarre collection of gifts to North Korean dictator Kim Jong Il from the despots of the world.

Underwater volcanic eruption forms new island off the coast of Tonga.