Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A beautifully eclectic mix of architectural styles.

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

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Hamburgers are intensely proud of their tunnel beneath the river.

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

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

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

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

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

This chimerical bridge/tunnel appears to dead end right into the sea.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Go surfing on this urban wave, "hacked" by local surfers.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.