Island where motor vehicles are banned -- home to the only carless highway in the United States.

An ear-piercing buzzer calls lawmakers to a vote with a series of long and short rings to form coded messages.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

A huge enchanting public park just outside the ancient walls of Rome.

A rare forest habitat nestled behind two sand dunes.

Latvia’s first skyscraper, nicknamed ‘Stalin’s birthday cake.’

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.

Flamboyant architecture from the turn of 20th century.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A naturally mummified 2,000-year-old man.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

How did a French journalist’s grave become the sexiest statue in the cemetery?

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This recessed garden protects thousands of mountain plants by creating its own microclimates.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Notorious artist squat renovated into legal studios.

France's national museum of scientific and industrial instruments.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.