A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

These memorials built by an eccentric bachelor on the side of Interstate 5 cause both wonder and traffic accidents.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

This single-track road rewards brave drivers with stunning Scottish scenery.

Britain's only herd of free-ranging reindeer.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Now home to a drinking establishment, this building has a macabre history.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A black cottonwood gets a second life as a home for books.

After this former brothel closed, its interior remained almost frozen in time.

A nearly abandoned 19th-century town on the Palouse.

A graveyard for early settlers, sometimes called Old Pioneer Cemetery, hidden in the woods on a hillside.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

These fantastically named natural pools look like something out of a Scottish myth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.