The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

This replica of the Greek structure is in the heart of Nashville.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

Belly up to the bar in Cowtown, don't forget to buy some boots.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

In Parr Park, thousands of painted rocks line this walking trail.

The world's longest known cave system.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

The mounds at this site were reconstructed with the help of archaeologists and historians.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

Georgia's first brewery is also one of its oldest surviving buildings.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

St. Augustine's record-setting narrow street was designed to protect against pirates.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A monolith replica monument of Jean Ribault commemorating the landing of the French in the New World.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.