This fortress-like monastery is covered with intricate frescoes.

See a full-scale whale skeleton and experience the captivating culture of Alaska’s Native people at this heritage center in east Anchorage.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Vermont's hills are alive with the sound of music at this historic hotel.

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

This small museum is home to some of the oldest and best-preserved dinosaur specimens found in Montana.

This small park features a monumental fountain wall, providing a great photo opportunity in the middle of Houston.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

A 200-year-old live oak on the banks of Lake Pontchartrain.

This remote Montana battlefield is the site of the Nez Perce Flight of 1877.

This 19th-century hotel and spa hosted famous guests like like the Vanderbilt family, William Waldorf Astor, Helen Keller, and Jay Gould.

Some believe this tree to be more than 1,500 years old.

This canyon is named for a unique geologic formation where the river vanishes underground near the mouth of the canyon and reappears farther down.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

The second-tallest water tower shaped like a peach in the American South.

This historic chapel was rebuilt after lighting caused the original structure to catch fire.

The permanent home of a 1960s traveling museum of tiny historical dioramas.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Monument to the cotton-destroying boll weevil.

The first patented shaved-ice machine heralded a snowy wonderland of iced treats at a favorite New Orleans summer shack.

The only house built with a turret, crenellations, and a moat in Palmer, Alaska.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

Thousand-year-old trees tower within one of the world's only inland temperate rainforests.