Where the people of Gozo have been doing laundry for more than six centuries.

This 19th-century aqueduct provides insights into how water was supplied to Victoria on the island of Gozo before modern plumbing.

Enigmatic tombs and cave dwellings on the outskirts of a rural village.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A rare north-facing Ksitigarbha statue enshrined in a passageway off Osaka’s busiest area.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

A unique work of automotive art calls this shopping center home.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

A curious collection dedicated to human and animal anatomy and pathology.

Op-art architecture designed for happiness.

One man's remarkable private collection of art from around the world.

This little-known national museum houses over 40,000 works of art from across the world.

Step back in time at this 19th-century kiosk.

This museum contains a vast array of puppets and marionettes from all over the world, featuring incredible works by Portuguese creators.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.