Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

A 19th-century architectural wonder designed by the "father of the skyscraper."

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Take a step into the workshop where Edison and his employees revolutionized the world.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

Destructive children, start your engines.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This "floating railway" is one of the world's oldest monorail systems.

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

Inside this old train depot resides a multi-line model train covering western North Carolina.