Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A spherical "micro-nation" in the heart of Vienna.

A bookstore dedicated to the intersection of comedy and art.

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

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

These fly sculptures are scattered around the city and represent the patron saint of Girona.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

This 18th-century sundial was designed to calculate the date of Easter each year.

An unusual number plate signifies the building's saucy past.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The site of the climactic scene from the classic horror film is now a historic landmark.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

Phil Mortillaro uses keys to bring art back to the Village.

Those belting out show tunes in this West Village piano bar might not realize it marks the site where Thomas Paine died in 1809.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.