Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Alexander Hamilton’s creation caused quite a bit of controversy.

This elaborate towering structure was once famed for its revolutionary height.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Yo, Adrian!

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A vertically floating hemlock controls the waves and weather at Crater Lake.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The remnants of a creative early method of wildfire prevention.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

One of the oldest living oak trees in the Southeast.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The first "Hut" was actually a small brick building.

Journey up the capitol building's cupola for an amazing view of Topeka.

This 41,000-acre wetland complex is the largest marsh in the interior of the United States.

The oldest purpose-built cinema still in operation also houses a museum of movie memorabilia.

Topeka has its own great wall, and it's covered in colorful images from the city's history.

Lone survivor from Custer's Last Stand forever preserved.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.