The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

The world's most important buildings shrunk to a tiny size.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

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

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

Bizarrely-painted church designed by a controversial artist.

This work of engineering is imbued with elegance and ingeniousness.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This now abandoned restaurant provides some of the most amazing views of Lisboa.

3,000 market stands in five former Zeppelin hangars.

Flamboyant architecture from the turn of 20th century.

An unusual sand beach in the middle of a forest.

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

This snug medieval lane is one of the narrowest streets in the world.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

No one knows who built this strange cave of worship or exactly why.

A medieval church built up to defend its village.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Moss and stone turn this waterfall into an otherworldly liquid veil.

A giant portrait of an ancient king looms over the river.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.