An Inca spa, military outpost or maybe… both?

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

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

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

Did Inca children also slide down these smooth rocky slopes above Cusco?

Death rituals and sacrifice inside a Peruvian megalith.

A unique sculpture park that specializes in the huge and bizarre.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

A white Buddhist temple with a golden restroom.

This giant disembodied horse head seems to balance impossibly on its nose.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.