Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

It is against the law to obstruct the view from the top of this English burial mound.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

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

Catacombs turned marketplace.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

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

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

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

A crumbling hospital from the 1850s on Roosevelt Island.

Elevated freight railway turned wildly successful urban park.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.