Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

This Underground station has been a popular filming location for decades, even before it closed.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

Pop culture has helped to keep this iconic British building from being destroyed.

A network of concealed passageways lies within a busy London Underground station.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

The anatomical-pathological collection of a man who changed surgery.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

An unusual round church in London with a Templar past.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This tiny alleyway is now a shrine to a subculture riot between the mods and rockers.

A set of seven houses, each built in a style that represents a European country.

A vintage penny arcade hidden in the back of a fun fair-themed bar.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

This tunnel entrance is built to resemble a grand castle but no one is quite sure why.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A unique collection of gilded age mechanical pianos.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A centuries-old forgotten underworld lies beneath Malta.