A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

A fitting attraction for the corn capital of the world.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

The only recreation of William Shakespeare's indoor playhouse.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

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

These little castles each held thousands of pigeons.

America's oldest archaeological site or a muddled case of wishful thinking.

A Buddhist theme park brings you a Buddhist version of Hell.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

The largest collection of two headed animals in the world.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A former imperial sea-fortress and Soviet prison.

A hot dog stand where the heads are just as hot as the dogs.

Rare collectibles from automated musical instruments to 250 unique automobiles.

Secret Swing.

Bridge that died in war and was resurected.

A man's home is his castle.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The largest self-built castle in the U.S., six decades in the making.

The mummified remains of Dashi-Dorzho Itigilov, Russia's most important Buddhist.

On the Pakistan-India border the militaries perform an elaborate theater of aggression each and every night.

An Austrian house of bones filled with hundreds of intricately painted skulls.