A memorial to the only dog ever officially enlisted in the Royal Navy.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

This rustic old building is said to be the most photographed barn in America.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

"X" marks the spot of an echo chamber in the middle of a plaza.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An eerie smiling woman looms above the granite tombstones.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

This haunting tombstone comes complete with a heartbreaking story of love and loss.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

These markers are used to document elevation changes around the famed dam.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Most-visited and most-photographed slot canyon in the American Southwest.

A sharp bend in a dramatic river canyon cut through red rocks.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.