The only surviving 19th-century water-powered mill found in the Washington, D.C. area.

A beautiful hidden gem in central West Virginia.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

This building contains handprints that are well over a century old.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.

An abandoned, rusty old relic of railroad history stands at attention over the Cuyahoga River.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

A prestigious learning institute of old Shanghai.

The oldest continuously occupied public building in the United States.

An early life spent in this "Old Kentucky Home" inspired the writings of North Carolina's most famous novelist.

This mountain trail inspired Nietzsche to complete his magnum opus.

Hike deep into the woods to explore this Gilded Age masterpiece.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The oldest church in Mantua was buried for centuries under the facades of other structures.

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

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The only surviving fragment of the lost Narragansett Pier Casino.

The highway's southernmost spot is a beloved local attraction.

This ancient art form was used to capture the lives and struggles of the Haywood Street ministry.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

A nourishing complex of found object art, paintings, and sculptures that celebrate key figures in Black history.