Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

A college in rural Kansas founded to prepare the country for an impending World War III.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Home with Gothic windows featured in a famous painting.

Tribute to the famous Notre Dame football coach who died in a plane crash.

Cannon designed to fire an atomic warhead.

This historic cliffside mansion uses a natural cave for air conditioning.

A small town garden is dedicated to a psychic dog with the most soulful eyes.

This 40-foot fowl marks the so-called "wild goose capital of the world."

The face of the famed flier in a hillside in her hometown.

The first home of the doomed aviatrix Amelia Earhart.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This recently restored timepiece has stood all around Kansas City.

Community bookshelf of 25-foot-tall book spines.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

This otherworldly church spire reaches up toward the heavens.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

One of America's first planned communities is preserved in a state park.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.