A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

Turntable anonymously received orphans, alms, and groceries.

Week-long block party becomes a competition for the best decorated street.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

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

A set of seven houses, each built in a style that represents a European country.

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

Europe's official "zero-level," the equator of elevation.

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

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

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

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

This unattributed sculpture in Amsterdam is hiding in plain sight.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

The history and future of cannabis.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This London plaque marks the spot where David Bowie's famous alien made his debut.

Scattered throughout London are ancient remnants of the city's former bounding wall.