At an estimated 3,800 years old, this olive tree is one of the oldest on earth.

The C. A. Nothnagle Log House stands as the oldest surviving log cabin in the United States, offering a remarkable glimpse into America's colonial past.

This World War II bunker is now a shrine covered with sea shells.

A focal point for the German American Festival-Society symbolizing the "Spirit of Unity' and fellowship for the Toledo area.

Before firefighters, villagers relied on this simple hook to save their thatched cottages from a fiery doom.

One of just five sand-floor Jewish synagogues in the world.

This impressive chasm is one of the longest natural underground cavities in the world.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Musings of an artist carved into a rural stonewall.

Ireland's most northerly island is hauntingly beautiful. Its lighthouse was the last glimpse of home for many Irish emigrants bound for the U.S.

The world's northernmost botanic garden has 25 collections of plants from arctic and alpine regions.

Built in 1547, these ruins lie on a rocky promontory in Ballintoy jutting into the wild ocean waters below.

Four hundred years ago, this turned-about message was carved into one of Winchester Cathedral's exterior walls.

Though this bridge was originally built in the 12th century, only one of its 10 arches dates back that far.

A little-known, yet charming glacial lagoon.

A massive mammoth bone has been on display inside this church since the 18th century.

The former "holiday home" for monks at the Durham Cathedral.

Originally built in the 15th century, this well gave the surrounding area its name.

A historic hotel with many stories of haunted activity.

This alpine statue of Jesus in Silverton is said to protect both miners and local economies.

This is the site of the medieval holy well of St. Chad.

A smug-looking cat representing an humorous Russian expletive.

A magical woodland theatre in Wales reclaimed by nature.

A shockingly detailed small scale recreation of the temples of Abu Simbel.