This massive redwood tree has a hole in the base big enough to drive through.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This giant green head remembers one of America's jazz giants.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

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

Giant granite rocks standing end-to-end like a train of circus elephants.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

This is not your typical jungle gym.

Erosion and time have created a naturally-formed water park.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Stroll through a wonderland of stupendous moss-covered trees.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

A towering bronze statue memorializes the founding father of postwar American conservatism.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Stairs often replace streets on the steep slopes of this old mining town.

The unusual burial monument of Arizona's first governor.

A geological mystery on Camelback Mountain.