Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Site of the first radio and telephone broadcasting companies in Copenhagen.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Copenhagen's celebrated theme park and gardens.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The world's first combination ski slope and power plant.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

An anonymous art project beneath Longfellow Bridge where hundreds of trophies line the steel support beams.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

This fine arts hall honors the mastermind behind our beloved creepy and kooky Addams Family.

The Boston square dedicated to the dark poet who was born nearby.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Since 1956, this quintessentially New England seafood shack has been boiling its lobsters in seawater over wood fires.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.