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

The attic of a four-century-old canal house hides a clandestine church.

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

A public urinal so pretty, it was declared a national monument.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

Europe's first floating restaurant is home to a hilarious legend.

This collection of 20th-century toys is filled with a lifelong personal toy collection brought from the U.S. to Amsterdam.

The facade of this bank has changed little over the centuries, including its unique welcome sign.

A floating underwater hotel, created by a Swedish artist.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This unusual elevator doesn’t stop or slow down.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Museum preserving torture methods from the past.

Stockholm's tiniest statue is of a small boy looking at the Moon.

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

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

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

A heated statue pays tribute to one of Sweden's great actresses.

The world's largest model of our planetary system.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

A man has revenged his true love's betrayal through tears and stone genitalia.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.