Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Home to a forest of whimsical pygmy Coast live oak.

This memorial to a horrific ship collision sits over a mass grave holding dozens of the victims.

The very isolated Charity Island Lighthouse has been watching over Saginaw Bay since 1857.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The final resting place of the hundreds of bodies originally buried where Badin Lake sits now.

The world's largest and most outstanding marl lake regularly changes color.

America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

Egyptian Revival obelisks still rise over the old mine shafts.

A sacred Ojibwe site covered in pictographs next to Lake Superior.

A little-visited waterfall in an otherworldly landscape.

A clear example of the process of erosion in action.

Located in a remote mountain valley in Yamagata Prefecture, these hot springs have attracted bathers for over 450 years.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

A natural gas leak provides a flickering flame beneath a waterfall.

Rare recess caves fill this unbelievably beautiful Ohio park.

This large midwestern cavern features impressive rock formations and an underground waterfall.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

A hundred-year-old museum filled with giant physics toys and experiments designed by grad students.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.