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

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

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

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

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

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

An Inca spa, military outpost or maybe… both?

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

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

Death rituals and sacrifice inside a Peruvian megalith.

This expansive bridge in the Canadian wilderness was originally just built for friends.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

Famously misunderstood wonder of the ancient world

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The largest mosque in Cambodia was built to unite the country's Muslim community but soon sparked division and controversy instead.

A secluded, little-known temple hidden amid the dense jungle.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

Khmer Rouge's high security prison.

A small 12th-century temple surrounded by waters believed to have curative properties.

The capital of Cambodia is named after the hill on which this ancient temple complex stands.

One of the biggest markets in Asia, under one of the continent's largest domes.

More than 100 Hindu temples are slowly being swallowed by the forest.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.