An unusual round church in London with a Templar past.

A tongue-in-cheek arcade where the games are based on everyday life.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Banksy gives themself artistic license with this piece of London street art.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

An annual extravaganza of Broadway theater memorabilia.

Unrepaired walls from a 1920 anarchist bomb attack.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Avoid gangster interaction while window-shopping.

Volunteer-run library dedicated to exploring five decades of activism history.

The first and only carousel with a lineup entirely of insects.

An artist's cute bronze subway sculptures belie his violent artistic past.

This innocent-looking townhome is actually a subway exit.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.