The last remaining tollhouse in Michigan built during the 19th-century plank road craze.

The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

This replica of the Greek structure is in the heart of Nashville.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

Former self-sufficient mental institution now a planned community.

This tribute to a local man towers within a quaint lakeside park.

A crumbling mountain resort that looks like it was abandoned in an instant.

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

The rusted remains of an ill-fated freighter lie just off the coast of South Manitou Island in Lake Michigan.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A Natural History and Science Emporium.

Peek through the gates at this oasis from the city, full of Old English charm.

Step inside Lucy, the world's largest "elephant."