Site of a classic 19th-century physics experiment to prove the earth is rotating.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

In Egypt's expanding metro area, many of the neighbors are dead.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Ozymandias’ time-keeping temple.

The grassy landscape is home to the world's last truly wild horses.

Enormous statue of the Emperor of the Mongols.

The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

A mysterious phallic rock on the grounds of a Buddhist monastery.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Hoax, mistake, or evidence of dinosaurs in human times?

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Charnel house at the foot of Mount Sinai.

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

“Wagon Jobber" turned smokehouse magnate's family-owned business is still going strong 100 years later.