This abandoned oil depot produces world's longest echo in a manmade structure.

The "punniest place on Earth” has nearly as many bull-themed puns as it does people.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

The home of a famed utopian science fiction author has been preserved long after his predicted future in the year 2000.

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

A spiral staircase twists to the top of this unusual Czech lookout tower.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Special tunnels built so that frogs won't be killed when crossing the highway.

A ruined hotel with an unlucky history and an eerie present.

A private home built to resemble the shape of a microscopic creature.

A hardware store Buddha statue installed to deter vandalism wound up attracting Vietnamese immigrants who came to pray.

The longest burning light bulb in the world.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Temporary Burning Man sculpture made of two 18-wheelers.

An abandoned convention space that has been left to the homeless and the radical.