One man's extraordinary topiary garden in a small South Carolina town.

One of the oldest living oak trees in the Southeast.

An office built to look like a giant basket.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

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

A bronze monument to Cleveland's favorite, fastest son.

A 30-foot stack of piano keys memorializes one of the greatest keys players in jazz history.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

This restaurant proudly displays bread signed by the 39th president.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

The largest ancient burial mound in Ohio.

A real flying saucer, contracted by the U.S. Air Force.

Deep scars on the earth left by the Ice Age.

Rare recess caves fill this unbelievably beautiful Ohio park.

The largest earthwork effigy in the world.

Take a drunken tour inside the world's largest known geode.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.