The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A line number in Amsterdam that will likely never be used again due to its tragic history.

This vast collection of smoking pipes from across the world spans centuries.

The last of Amsterdam's original sea level markers remaining in place.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

A subterranean display of public art and architecture.

Many rock climbers have come to conquer this slender sea stack, with various degrees of success.

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

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.

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

An Inca spa, military outpost or maybe… both?

Death rituals and sacrifice inside a Peruvian megalith.

The meaning behind this triumphal Roman arch was a mystery until the early 20th century.

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

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

A collection of the specialized tools used to construct Japan’s beautiful architecture.

One man's lifetime collection of tiny objects of wisdom gathered from around the world, on display for public enjoyment.