A psychological self-portrait in the form of a giant, segmented head.

This woodland architectural installation acts as a camera obscura for the heavens.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Over a thousand feet beneath the Detroit streets is a subterranean metropolis few are allowed to enter.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

A lavender labyrinth so large it’s visible on Google Earth.

Largest magic museum in the United States with more than half a million pieces of memorabilia.

A reproduction of earth's many biomes.

An urban laboratory.

Seller of surplus nuclear research materials.

The winter home of thousands of beautiful snow geese and sandhill cranes.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

These aggressively sustainable art homes look like something out of 1970's science fiction.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."