Don't be a grizzly man. Get personal with Alaska's wild bears from the safety of this conservationist camp.

One woman's dream became a train hotel in her backyard.

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

The ruins of this Alaska gold mine form a gorgeous ghost town.

Four-story concrete hotel never opened to customers.

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

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

Gorgeous cave resemble a winter wonderland.

The ghostly remains of what was once the world's richest copper mine.

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

This whimsical stacked cabin looks like something out of a children's book.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This 1,500-acre development hopes to be the Central Park of the South.

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

A miniature city built by a single hunchbacked monk.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

148 feet long and in the middle of a verdant forest.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

One person's lost luggage is another person's treasure.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

A wondrous old library overlooking the nation's capital.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.