Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

Only a fragment of this 15th-century Dance of Death survives today.

A historic shipbuilding town is home to a sail-through fish-and-chips shop.

The last water-powered beam pumping engine in Britain.

Take a hike to this remote, scenic tea stop in the Canadian Rockies.

This quaint museum in a long-running workshop is dedicated to a fixture in New Orleans lighting.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

From printing money to live music, this Beaux-Arts style building has had many identities over the last century.

The humble beginnings of one of America’s greatest songsmiths.

This modern pedestrian bridge on the Yarra River was modeled after an Aboriginal fish trap.

One of Scotland's earliest hydroelectric power stations.

This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

This collection of Neolithic monuments make up one of The U.K.'s richest archeological landscapes.