This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Former self-sufficient mental institution now a planned community.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This protected area in Lake Huron contains some of the world’s best-preserved shipwrecks.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

Strange physical sensations and optical contradictions keep visitors coming back for more.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

A Beaux-Arts triumph set to become Ford's innovation campus

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

Opulent downtown movie theater now houses cars as an indoor parking garage.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

A priceless collection of the Nation's cryptologic history.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Remnants of a storybook amusement park hidden behind a strip mall.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.