This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This single room has survived the centuries with almost no deterioration.

The ghost town that ended up on Ebay.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

This former crime corner has been turned into an eclectic community center.

A veritable variety of odds and ends.

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

Lie in a hammock where George Washington stood.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

One of only two commuter aerial tramways in the United States.

A hidden "place of interment for gentlemen."

Try not to get slimed in Tribeca.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

A crumbling hospital from the 1850s on Roosevelt Island.