The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

There must be a pun in this haystack somewhere...

The most confusing clock in New York.

Unrepaired walls from a 1920 anarchist bomb attack.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

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

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A terrific purveyor of natural history objects and curios.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

Hear the quietest sound from across the dome.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

Deep in the Thar desert, a temple crawling with thousands of holy rats.

An ancient iron pillar in Delhi that seems to be rustproof.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The first American department store, and home to the largest operating musical instrument in the world.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Mysterious rocks that ring musically when struck.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.