The remains of what was the most important religious complex in coastal Peru for over a millennium.

Death rituals and sacrifice inside a Peruvian megalith.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The Uros people live on floating reed islands in lake Titicaca.

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

An unexpected desert oasis in South America.

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

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

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.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

Northern Ireland's Brobdingnagian stepping stones.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Cheap art and political theater in Vermont.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Joe Minter is only doing the work of God in his yard, he says.

This replica of the Greek structure is in the heart of Nashville.

A piece of outsider public art accompanied by a strange urban legend.