This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

A subterranean playground in an abandoned slate mine.

A rare chance to ride one of the few continuous elevators still in operation.

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

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

The most loyal of little dogs, or a Victorian era publicity stunt?

A book bound in the skin of an infamous criminal, along with countless other specimens.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

360° views of the city plus five floors of optical illusions and hands-on science.

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

The decaying ruins of Wales' first asylum for the mentally ill.

This haunting stone chasm is a hotbed of mossy rock and English legend.

This Manchester laundromat is hiding something.

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.