An architectural oddity hides in plain sight on this iconic London bridge.

This bridge was designed to connect a road that never came to fruition.

Edoras, capital city of Rohan in Lord of the Rings, once sat atop this isolated New Zealand mountain.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

High winds can make this one scary landing.

White cockroaches and other cave species occupy this massive series of lava tubes.

Come for the flowers, stay for the bats!

The Victoria-era quarantine station for Sydney.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

A clear example of the process of erosion in action.

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

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

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

The farmhouse owned by the Danish author who wrote "Out of Africa" is now a museum honoring her legacy.

This wildlife trust is dedicated to orphaned elephant rescue and conservation.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This impressive Boston holy house is the American mecca for Christian scientists.

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

Ice cream stand, snack bar, and time capsule of milk conveyance.