An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

In 1977, an eccentric book lover formed a micronation for book lovers.

The remains of centuries of copper mining appear like an alien landscape.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

One family's environment-friendly hobbit-house in Wales.

At the United Kingdom's only residential library you can sleep among the books.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The most alien-looking place on Earth.

WWII rocket launchpad in rural Germany and site of operation backfire.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

France's most famous cemetery, with some of its most curious tombs.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

This public observatory is home to the "celestial cannon," the longest pointable telescope in the world.

The best bagels in Berlin are tucked away in an independent bookstore.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.