A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A building shaped like the Army Corps of Engineers logo, because why not?

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Please don’t anchor your boat onto the Department of Defense’s underwater data cables.

Perhaps the most scandalous statue of America's first president.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This forgotten boat elevator was an engineering marvel in its heyday.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

A giant toy jack made of numerous welded-together fire hydrants.

Where pardoned turkeys once spent their all-too-brief final days.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

This massive solar system model is sprawled out across Maine's suburban wilderness.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

Look closely and you’ll notice that the color changes a third of the way up the tower.

St. Augustine's record-setting narrow street was designed to protect against pirates.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.