Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

Florida’s half-sized replica of the Vietnam Veterans Wall.

A local landmark with generations of spraypainted messages, and more being added each day.

Colorful boxes placed over the dead are left to rot and crumble.

Siberian husky that delivered a life-saving antitoxin.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

Considered by many to be one of the most dangerous highways in Alaska.

The now-serene site of the largest earthquake ever recorded in North America.

Pay homage to a preeminent matriarch, and the native Dena’ina people, at this sculpture installation in Anchorage.

Marine fossils from the Devonian period are exposed at this park.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

Yup, that's where the name came from.

This small hut in the middle of a parking lot was once the wooded sanctuary of the 'Hermit of Montrose.'

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

Come for the boats, stay to explore the intriguing assortment of art.

Location of a reliquary containing bone fragments of 18 saints.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.