Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

One of the most controversial statues in Romania is an emperor with no clothes.

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

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

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This lurid German fountain plots the sad course of marriage from dating to death.

Paris' linguistic guide to the international language of, yes, love.