A half-size replica of the World Trade Center towers above Tulsa.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

One of the best examples of Art Deco architecture in the United States.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

Low-frequency noise compared to an idling train can only be heard by some of this industrial town's residents.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

An acoustic anomaly with a mysterious cause.

"The Most Boring Road in the State."

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

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

Michigan’s most famous shoe tree.

This scenic overlook commemorates the tragic death of a soon-to-be-married lumberjack.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

Perhaps the tiniest sculpture in Saint Petersburg is a little bronze finch inspired by a song.

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

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Almost half-way between the Equator and North Pole.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

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

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.