A daily replay of the experiment that proved the rotation of the Earth.

Mysterious rocks that ring musically when struck.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

An artist's cute bronze subway sculptures belie his violent artistic past.

Lie in a hammock where George Washington stood.

Elevated freight railway turned wildly successful urban park.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Home to three historic ships from the age of Vikings.

This giant statue is the product of a mixture of corruption, Stalinist architecture, and North Korean manpower.

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

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A naturally mummified 2,000-year-old man.

Scattered throughout London are ancient remnants of the city's former bounding wall.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.