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

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

Home of the only civilian casualty at the Battle of Gettysburg.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Home to a vast and influential collection of Shakespeareana.

A secret greenspace hides atop a Capitol parking garage.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Washington's iconic carousel has a nice piece of Civil Rights history.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

Miniature art that tells an enormous story.

This church on a Tohono O'Odham reservation has stood since 1797.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Originally dubbed "Retirement" by the Navy Commodore who built it in 1780, this beautiful mansion is now the centerpiece of a suburban community park.

The former home of Thomson Francis Mason, the mayor of Alexandria from 1827-1830.

The school tested mustard gas for the U.S. Army during World War I.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Every equinox this Maya pyramid puts on a spooky ancient light show.

An inconspicuous footbridge beloved by San Diego locals.

Built for an exposition in 1915, these horticultural displays have stood the test of time.