In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

One of Philadelphia's largest murals resides hidden under this bridge.

This 45-story tall abandoned skyscraper is the third tallest building in New Orleans and Lousiana.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

This historic furnace was once used to produce cannonballs during the Civil War.

This picturesque Victorian ghost town was once a thriving mill community.

The giant birds honor two native North American species.

A serene plaza that commemorates one of the Granite State's most iconic figures.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

Time travel with sweets across history at this research-based candy store.

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

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

A homage to the King at the hotel where he revived his career.

This half-ton piece of the Alps sits at the base of the CN Tower.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

Alexander Hamilton’s creation caused quite a bit of controversy.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

This one-room cabin where the young colonel slept during the French and Indian War.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.