A scattered trail of street art adds a pop of color to the city's stark structures.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A close look reveals that the Scottish monument is just slightly off-kilter.

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

In 1990, this 37-foot red steel bottle sailed from New York to England.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

A single oak tree rises out of the waters of Loch Lomond.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

This mural condenses 96 miles of one of Scotland's best-known trails into a unique art display.

A peculiar trapezoidal building covered with wonderful humorous reliefs.

This cheeky statue of a man defecating gold coins graces the facade of a medieval guildhall.

This strange sculpture is an enigmatic icon of this medieval German town.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

This enchanting mountain plateau celebrates spooky local folklore.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The oldest garden in Prague, once part of an medieval orchard.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A beautiful window with the old Tesla Radio company logo.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A mocking tribute to the past and modern leadership of Prague.

Monument to a suicide protesting the Soviet invasion.