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

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

A beautiful geyser under environmental threat.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An incredibly well-preserved piece of ninth-century Viking poop.

One of the oldest living oak trees in the Southeast.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Few of the many visitors to this resort town know of its hidden Maya ruins.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.