The only Bahá'í house of worship in North America and one of only a handful worldwide.

A Bibliophile's Dream.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A unique botanical garden housed in three giant geodesic domes.

Its sunny hues are believed to have inspired the town's color palette.

Iconic red and white plaques show the creative names invented to navigate the city streets.

Its incredible collections are dedicated to preserving Mexico's film history.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

A museum in the former home of Marxist revolutionary Leon Trotsky.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Part bookstore, part café, and part forest.

An eerie collection of the surviving structures from a past celebration of the future.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

A lush indoor jungle fills this bustling Madrid transportation hub.

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

This cemetery features modernist statues as strange as its name.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

One of downtown Berlin's last reminders of its Communist past.

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

The most visited, and possibly most controversial, museum in Germany.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.