A Mysterious Masonic tomb in San Luis Obispo.

The world's first motel is now an administrative building for an apple farm.

A plaque outside the San Jose airport commemorates the insect's arrival to the West Coast.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A massive volcanic plug is now a protected area that hosts a number of bird species.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

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

A whale of a public art display towers atop Juneau's cruise ship dock.

Known as the “Official Greeter of Juneau,” this dog still welcomes ships and their passengers to Alaska.

One person's lost luggage is another person's treasure.

This strange, small castle on the bayou has withstood the test of time and weather.

This small hut in the middle of a parking lot was once the wooded sanctuary of the 'Hermit of Montrose.'

Once America's tallest structure, now a Baltimore landmark.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The real-life site of Ichabod Crane's infamous gourd attack.

This replica of the Greek structure is in the heart of Nashville.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

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

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

An architectural oddity hides in plain sight on this iconic London bridge.