The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

America's oldest archaeological site or a muddled case of wishful thinking.

A historic bridge with a lovely acoustic anomaly.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Three prestigious academic collections come together to create a world-class natural history museum.

A little Lego easter egg is hidden underwater in the Boston Tea Party tableau at Miniland.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

One of America's most historic homes also holds a startling literary legacy.

This is the house that spite built.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

Why have you never heard of the second most popular tourist site in New York?

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

World's first "penitentiary," meant to be humane, drove men insane.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The massive machine creates cracking displays of indoor lightning.