This Idaho state park boasts the tallest single-structured sand dune in North America.

Two geologically young and nearly circular volcanic subsidence craters, each about a half-mile in diameter, abruptly break the nearly featureless Snake River Plain.

During World War II, over 13,000 people of Japanese ancestry were forcibly removed from their homes and incarcerated in this camp in the Idaho desert.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

New Plymouth, Idaho is the only U-shaped town in the United States.

Supposedly Satanic numbers adorn this preserved submarine sail.

It was once used as a classroom to teach mining skills to local high school students.

The mayor made the declaration in 2004.

This colorful historic site tells the story of Icelandic poetry and community in Central Alberta.

With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.