Cryptic messages embedded in the New York City sidewalk.

A bit of retro transportation flair preserved in the world's largest department store.

Elevated freight railway turned wildly successful urban park.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

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

World's first "penitentiary," meant to be humane, drove men insane.

Yo, Adrian!

The site of the climactic scene from the classic horror film is now a historic landmark.

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

An eccentric playboy's astounding natural history collection.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.