A historic freight system that found the true gold rush is in tourism.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

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

More than 150 snowmobiles fill this Michigan museum.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

This black shoreline is made up of exploded lava particles.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

The museum houses one of the world's largest collections of glass paperweights.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

These curious caverns have been home to mushrooms, gangsters, and disco.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This municipal park along the Missouri River honors the galley central to the Lewis & Clark Expedition with a replica ship and sculptures.

Examine the impact of the horse on Great Plains culture through exhibits on ranching, rodeo, and the Native American way of life.