Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

A World War II–era submarine museum where visitors can spend the night aboard.

Restoring faith in humanity one pie at a time by selling stellar baked goods on an honor system.

A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

A World War II-era submarine is stuck in the mud in New Jersey.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Mining caused an asbestos emergency in this small town.

A monument to the center of the North American continent may be off by a few miles.

The U.S.' first commercial park dedicated entirely to flying drones.

This water tower has been a staple of the Rochester skyline since 1931.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

A memorial dedicated to a highly decorated Marine and Korean War veteran, who also happened to be a horse.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The failure of one component toppled this entire bridge during rush hour.

Inside an airport, visitors can explore this museum where history takes flight.

The museum displays the life work of the great clown spanning a career of 70 years in movies, television, radio and his paintings.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

The juke joint where legendary soul artists ate, drank, and made merry.

The seventh largest spring in the world.

Bronze statue marks the spinach capital of the world.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

A seven-ton black granite monument dedicated to the memory of those who died and those who lived through the 1977 crash of the popular Southern rock band.