The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.

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.

The metal-free wooden towers of Brück.

Terrifying derelict military hospital once housed a recuperating Hitler.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Two stunning 17th-century libraries and a cabinet of curiosities.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

After decades of research and rumors, Little Zion Church was proven to be his final resting place.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Beloved children's TV characters freckle the German city's streets.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

Real bones which are said to have belonged to a Polish dragon.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This 135-year-old weather station studied the effects of the climate on human health.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Double spiral staircases are not unheard of, but they are very rare.

One of England's most famous churches hides a pair of little known architectural treasures.