Penn State's giant bug collection.

No one knows who painted this mysterious mural in a Penn State basement.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

This museum offers an actual time machine back through Colorado's past.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

A downtown park built on top of unclaimed graves.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

A technicolor place of worship for Elevationists.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

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.

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

In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

Outside Grand Valley State University, you'll find a bench upon which many were said to have sat according to the fictional Kcymaerxthaere, waiting for a guide of time.

On the right bank of the Grand River a plaque remembers an imaginary painter who once awaited his youth.

At Fountain and Division, in the shadow of Kendall College of Art and Design, lays the story of a fictional culture whose political system was used under license and who finally rebelled.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

Ancient Egyptian relief, claimed to depict an electrical light.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.