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

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.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

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

The home of the Dead Sea Scrolls is an abstract modernist dream.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

The colorful, smiling concrete silos of Vancouver.

Traditional 15th century Chinese garden in the middle of Vancouver.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A daily replay of the experiment that proved the rotation of the Earth.

Yo, Adrian!

This elaborate towering structure was once famed for its revolutionary height.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

Dr Barnes' $25 billion private collection of art and arboretum.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

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

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.