Thousands of flowers create enchanting pink tunnels over the city streets.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This abandoned Slovenian military barracks has become a punky-political art squat.

A cemetery for Slovenian notables also serves as a popular recreation space.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

This small museum in a 17th-century building honors three iconic Scottish writers.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

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

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

Lumps of significant stone from around the world surround a flaming monument for peace.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

This steel frame is a skeletal mirage of a lost 16th-century stone building.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

Yup, that's a 330-foot yacht passing over the highway.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

The bridges portrayed on EU currency aren't fictional anymore.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

“And the Lord said unto Johan, build for thee an ark for the end of the world is approaching.”