One-of-a-kind museum inside the first Boeing 747-400 ever made.

A hidden oasis just two minutes from downtown Atlanta.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

The world's first time capsule lies behind a welded steel door in Atlanta.

Healing Springs that once ran red with soldiers' blood.

This stone is a marker of one millionaire's personal vendetta against gravity.

Tour the sci-fi-esque reality of governmental disease management.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

This 2,700-year-old woman is the jewel of the Maidstone Museum's Egyptian collection.

A lion given to the prime minister somehow got stuffed and sent to Florida.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Ship-sized kinetic sculptural fantasy.

Rebuilt remains of a temple to Roman god Mithras.

A kaleidoscopic warehouse-maze of handmade neon signs.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

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