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

No one really knows how these old hobby horses got here, but the herd keeps growing.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

A steampunk wonderland that preserves America's history of industrial innovation.

Millions of numbers carved in glass represent the tattoos forced upon victims.

The world's largest piece of copyrighted artwork.

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 massive tea kettle was once a promotional stunt for the Oriental Teashop.

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

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

The massive machine creates cracking displays of indoor lightning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This historic national park is covered in the stunning ruins of red rock pueblos.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Books you don’t need in a place you can’t find.

More than 200 unconventional musical instruments that anyone can play.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.