Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Illegal drag racing two stories beneath Chicago’s streets.

Two stunning 17th-century libraries and a cabinet of curiosities.

A giant interactive periodic table with real samples of the elements.

The first museum in the world devoted to sexual gadgetry.

The largest and best-preserved rotunda in Prague.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The tomb of history's greatest potato promoter is surrounded by tubers.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

The final resting place of the "father of special effects."

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

For over 300 years this little carving has been the city’s good luck charm.

This working class sculpture pounds his hammer all the livelong day.

The first park built over a freeway is a brutalist masterwork.

This former coal gasification plant found a curious second life as a popular public park.

The world's largest reflecting pool is just two centimeters deep.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

A tiny, heartwarming piece of art hiding in plain sight.

Be on the lookout for the symbolic insect all over the city.

This massive memorial commemorates those who died in the Manchester Arena bombing.