Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Quite simply the largest tree in the world (by volume).

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

One of the most unusual geological features, recognizable from a dozen hit movies.

This unique graffiti art from the 1940s has become a staple of this local landscape in the remote California desert.

At 207 feet, one of the world's longest continuous escalators.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

A small Richmond island dotted with the remnants of hundreds of years of history.

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

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The location of this historic castle was inspired by a donkey.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

A scattered trail of street art adds a pop of color to the city's stark structures.

A glacial pothole was once a hideout for a notorious Scottish outlaw.

Possibly the oldest living thing in Europe, more likely a pagan survivor.