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

The little bear in the "funny kind of hat" has made his way from London back to Peru.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Yo, Adrian!

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Elevated freight railway turned wildly successful urban park.

A terrific purveyor of natural history objects and curios.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Where once there was a train station bathroom, there is now this German burger joint.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Come for the flowers, stay for the bats!

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

One of the best beaches in the entire world.

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

France's most famous cemetery, with some of its most curious tombs.

A layered tribute to the work of mosaicist Isaiah Zagar.

The ghostly remains of an accidental sea.