Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

The site where Joe Gallo kept his guns, pet lion, and launched an all out mob war in 1960s Brooklyn.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

Salute the leader of the proletariat.

Historical figures from New York City's Catholic community reside in Midtown.

Hear the tales of New York's most notorious criminals.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

More gold than anywhere else, ever.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This Russian bar-restaurant lies within a three-story underground bathhouse.

This poignant tribute to the White Rose movement showcases artifacts related to the heroic anti-Nazi struggle.

An abandoned train station in Munich constructed for the 1972 Olympic games.

Go surfing on this urban wave, "hacked" by local surfers.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The footprint of a frustrated devil in Munich's Cathedral.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.