The debris forms a solemn memorial to those who died in a 1963 accident.

The “Grand Canyon of Maine” is a three-mile gorge full of striking geological features.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

The century-old remains of an abandoned farm town in eastern Washington.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

Nuclear reactor created the plutonium used on Nagasaki.

Stones speckled along Harris Avenue reveal hidden nuggets of the past.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

The former home of the "Mother of Father's Day."

The longest and widest floating bridge in the world.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

Sleep beneath the big screen at this old-school movie theater.

Tour the original street level of Port Angeles, buried underground in 1914.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

This candy-striped tower is the farthest east you can go in the United States.

This World's Fair showpiece was built in Chicago, but shipped to Maine.

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

A monument marks the beginning of the longest north-south road in the United States.

Former laboratory of radical psychiatrist Wilhelm Reich.

Turns out you can see the world without ever leaving Maine.