This grand gate once marked the entrance to a military barracks.

Nicknamed the "Spirit of Paul Klee," this colorful apartment building features an array of multicolored panels.

Meant to resemble a massive tree, the building is the best example of Spanish organicist architecture in Madrid.

In this 400-year-old hotel in Madrid, you'll find a comb in every room, an old clock, and maybe a ghost.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

This Brazilian Lady Liberty is one of the few replicas that was actually made by the original designer.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

A fascinating little museum all about the rich history of Peru’s famous plant.

An ancient capital city that dates back 3,000 years and harbors many surprises.

Brush shoulders with animatronic Arab leaders made of silicone.

Mummies preserved naturally for seven centuries.

This modernist cinema has survived war and reconstruction to become a symbol of Lebanon’s revolutionary spirit.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

The largest hewn stone in history.

Large miniature theme park with 100-plus models.

A marvel of Byzantine engineering under the streets of Istanbul.

Ancient serpentine sacrifice holder that has stood the test of time.

The most metal church of all time was built in record time because of an international, pious pissing contest.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.