At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

It leads to a former hospital’s old root cellar.

Former self-sufficient mental institution now a planned community.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

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

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

First planned industrial community in the United States.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A lush green oasis in the middle of Chicago.

An enormous park-like oasis, full of famous Chicagoans' graves.