This quaint New Jersey graveyard is an eternal resting place for thousands of beloved pets.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A spooky defunct railroad tunnel now part of a sprawling trail.

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

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

Research missiles and rainbow auroras at the world's largest land-based rocket range.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

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

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

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

Gorgeous cave resemble a winter wonderland.

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

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

The isolated final resting place for perished coal miners.

This abandoned train tunnel has been the subject of countless ghost stories for years.

The scant remains of this flooded historic village can be explored in one of the most remote areas of the Great Smokies.

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.