Synagogue built from the stones of Solomon's temple contains the golem of Prague.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A mocking tribute to the past and modern leadership of Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

Over time, this castle grew to encompass the entire island.

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

Dunk your churros in rich hot chocolate on the city’s old “Chocolate Street.”

This 17th-century Portuguese fort now houses a nautical museum.

The first model village in Brazil, built in 1917 to house workers at the jute sack factory.

Beautiful public park off the beaten path and away from tourists.

Fantastic views and thousands of love locks.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Third time's a charm, or in this case, two testicles are.

A small sculpture that pays homage to the famous bronze ear of Ca de l'Oreggia—or does it?

Eat the ultimate iteration of Portugal's most beloved pastry.

Sip cherry liqueur at a bar dating back to 1840.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

Flamboyant architecture from the turn of 20th century.