Modern art commemorates one of the first military actions of World War II.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

This antique thermometer honors the creator of the first universal temperature scale.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

A striking public sculpture representing the period of martial law in Communist Poland.

Relive a Polish uprising via an enormous, century-old cyclorama.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

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

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

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

This now abandoned restaurant provides some of the most amazing views of Lisboa.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

One of the smallest bookstores on the planet.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This historic streetcar system has been running since the 19th-century.