A giant concrete orb in far north Iceland marks the ever-shifting boundary.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Giant kites are flown during this Day of the Dead celebration in Guatemala.

This Chinese museum proves that it's a watermelon world, we're all just living in it.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The largest brick bridge in the world.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

Trash-filled shrines to an unofficial saint known for her endless breast milk dot the highways of Argentina.

Birds with backpacks expedite film development for a rafting company on a remote Colorado river.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

A century-old network of freight tunnels underneath the city's historic business district.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

The 606 is a decade in the making.

These abandoned grain silos and tunnels are an urban exploration dream.

These pretty kitties killed and ate as many as 135 railway workers.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

This historic hotel invented the chocolate brownie.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.