Huge stone depressions which may have acted as an Incan agricultural experiment.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

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

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

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

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

A Christian monastery stands on what was once a holy Incan temple.

The sophisticated hydraulic system of the Nazca civilization.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

An unexpected desert oasis in South America.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Enormous small-business mecca in the Midwest, serving dozens of artists.

One of the few working locomotive roundhouses in the United States.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

These gardens recreate unique and endangered Michigan habitats.

The 10-foot-tall vegetables belong to Michigan’s first food rescue program.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

A watercolor recreation of a famous fresco unearthed at Pompeii.

An ever-evolving wall of graffiti art off East Liberty Street.

Everyone's invited to put on a miniature concert with this world-class musical wonder.