Banksy's image of a naked man dangling from the window of a sex health clinic.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

An English cenotaph honoring an American feminist icon.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

This ancient bridge made of stone slabs is said to be reserved for the devil to sunbathe.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

The world's largest collection of witchcraft regalia.

A fantastic castle rumored to be the birthplace of King Arthur.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A unique waterfall that some believe attracts the fairfolk.

These mysterious mazes carved on the rock may be up to 4,000 years old.

The former hotel where Tesla invented the radio.

Nikola Tesla's former home contains an homage hidden from plain sight.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

Unlock the secrets of the conjuring arts.

A whimsical, but often overlooked clock in Park Avenue.

A replica of a 7th-century church hides in plain sight in the middle of the concrete jungle.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A small part of lower Manhattan is actually made from a bit of England.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

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