The first mosque in the world to receive electricity.

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

A field filled with carved medieval tombstones called stećak.

The grounds of this Catholic boarding school are said to have inspired Arthur Conan Doyle and J.R.R. Tolkien.

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

A massive glacial deposit that includes a carved staircase to reach the top.

The phone booths in this English town have distinctly milky hues.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

A beautiful medieval bridge allegedly constructed by the Devil.

These ancient rock graves were featured on the cover of a Black Sabbath compilation album.

A limestone sculpture of a praying man resides over the site where 23 Chinese cockle pickers died.

Where Agatha Christie mysteriously disappeared in 1926.

Oliver Cromwell marched his army over this narrow bridge to victory at the Battle of Preston in 1648.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

What looks like missing grout is actually an old pub's peephole.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The largest preserved walking dragline excavator in Western Europe.

These legendary stone steps were once used to haul coffins up the rockface.

This rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.

This unique style of bridge is the last of its kind and runs over the straightest canal in Britain.

This museum dedicated to the famous comedy duo is located in the town where Stan Laurel was born.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

This region of the Perugia municipality has an unforgettable name.