These spectacular, symbolic serpents lie within the shadow of the Great Temple.

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

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

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

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

At 207 feet, one of the world's longest continuous escalators.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

The iconic castle that withstood a magnitude 6.2 earthquake has become a symbol of resilience.

A 20-meter (65-foot) robot towers over Tokyo Bay.

The ruins on a deserted tropical island in the Philippines bear the scars of WWII.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

This "City of Books" holds a museum, library, and the complete personal book collections of five of Mexico's greatest thinkers.

Part bookstore, part café, and part forest.

The only castle in North America to ever house European sovereigns.

The 28-foot granite map plots the locations of 40 theaters in New York City.

Salute the leader of the proletariat.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.