Explore more than 175 years of saxophone history.

More than 12,000 years ago, this park was a playground for mastodons.

A commemoration of over 150 of St. Louis's favorite sons and daughters.

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

The golden age of flight captured in a downtown airport.

A collection of soda memorabilia that spans decades.

First crafted during the 19th century, the mill was fully restored in 1983.

The only mill in the state that features a covered bridge.

A version of this picturesque mill has existed since the 1800s.

The longest of the four remaining covered bridges in Missouri.

In Edwin Hubble's hometown, a scale model of the groundbreaking telescope that was named in his honor.

From a canyon-like gorge, more than 20 million gallons of water emerge every day, while a smaller spring drips down, creating the illusion of an endless, gentle waterfall.

This small turbine mill along Rocky Creek was built in 1928

An underground river pushes more than 200 million gallons out of this Missouri spring every day.

Some of the oldest exposed rock formations in the United States.

The largest riverfront opening cave in the Ozarks.

This museum features the original car used on the Beverly Hillbillies sitcom.

A historic, scenic mill that was forced to close due to overlogging.

Around 50 million gallons of water flow from this spring every day.

An average of 33 million gallons of water pour out of the collapsed cave at the heart of this spherical spring.

A 40-foot waterfall flows into this unique natural swimming hole.

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

A subterranean haunt where wine and homemade biscottis are always on the menu.

It's believed the famed author's parents once used this spring to gather water.