The first bridge observation tower in the U.S. offers one of the best views of Maine.

Sculptures, jams, and the wild west collide at this folksy retreat.

The world's largest rotating world.

This outdoor gallery of sculptures along the East River was once a landfill.

The graveyard holds the remains of Irish immigrants who arrived in Queens after fleeing the Great Famine.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

A former Tibetan monk made a name for himself selling some of the best beef momos in New York.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

One kilometer of thick brass rod laid out before your eyes.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

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

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

A modest statue dedicated to Pierre Bayle, a young military drummer who willingly fought and died for his beloved France.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

Located on the campus of Emory University, this museum is filled with objects from the Americas to ancient Greece.

3/4-scale model of the White House in Atlanta, Georgia.