A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

This medieval castle was reconstructed by Carlo Scarpa.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

Four giant movable street lights decorate this modern Rotterdam square.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A bridge that has seen many reiterations over its lifetime.

A modern reimagining of a medieval city gate.

Museum preserving torture methods from the past.

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

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

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

An important landmark in the history of algebraic logic.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

The colorful stairs are made with marble from the world's major quarries.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

360° views of the city plus five floors of optical illusions and hands-on science.