A hundred-year-old museum filled with giant physics toys and experiments designed by grad students.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

A former barn converted into a massive train diorama.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

A theme park attraction designed to turn your children into LARPers.

The oldest certified bowling alley in the United States is in the basement of this century-old bar.

The rodent-shaped sidewalk imprint that earned worldwide media attention.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

The arboretum whose marshy soil sucked up the dreams of housing developers.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

A unique botanical garden housed in three giant geodesic domes.

A place to eat for on-the-run agents and espionage enthusiasts.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

This cave holds a surprisingly colorful variety of geological oddities.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Robots, lasers, and whoopee cushions, oh my!

A bizarre house filled with an astounding array of collections.

A rare venue to buy specialty maps.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

A neutrino detector built into the largest man-made underground cavity in the world.

An abandoned 1970s theme park that has been turned into a space for waterfront walking.

This extensive nuclear fallout shelter built from 42 school buses could house 500 people in its tunnels.

This natural sea cave hides a small wonderland of natural turquoise beauty.