A very classy 1920s-era bar right in Grand Central Station.

Become a prohibition rebel.

Mysterious 500-year-old tapestries depict a unicorn hunt.

The "Seinfeld" diner.

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

New York City's smallest piece of private property.

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

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

Try not to get slimed in Tribeca.

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

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

One of the world's tallest statues is also one of its most hated.

Stalinist skyscraper built with help of cryotechnology.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Where the lovelorn find a home for their sentimental keepsakes.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

This Roman monument is surrounded by more recent construction, offering a stark contrast between ancient architecture and the modern urban landscape.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.