This Connecticut ferry has been operating in some form since 1655.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

A small "palace" and museum made of, and devoted entirely, to salt.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A fruit-loving town welcomes visitors with a giant melon set against the sky.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

This historic drug store-turned-museum served an important role in the Civil Rights Movement.

One street divides a single town that stands in two U.S. states.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

In West Virginia, you can walk across the longest single-arch bridge in the Western Hemisphere.

A lighthouse on this West Virginia lake started as a joke, then the forces of nature helped make it a reality.

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

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A pair of 19th-century granite markers symbolically record where the state boundaries of New York, New Jersey, and Pennsylvania intersect.

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

Tucked away in the forest, these giant wooden trolls delight visitors in Charlestown, Rhode Island.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

The colonial home of Paul Revere during the American Revolution.

Forrest Gump ran past this iconic Maine lighthouse in his cinematic cross-country journey.