2300-year-old Roman road connecting the empire.

An Italian hillside ghost town.

Abandoned medieval hill town.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

The Guardian of Tallinn.

A wooden replica of France's famous tower.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Spend your honeymoon where the Devil had his wedding.

The gutted remains of this Estonian mansion are a monument to a tragic love.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.