Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

Mountain where Jesus was first tempted by the Devil.

This colorful statue welcomes visitors to a Barcelona park.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Week-long block party becomes a competition for the best decorated street.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

Read a book with a glass of wine at this classically restored bar.

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

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

Turntable anonymously received orphans, alms, and groceries.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

An early 20th-century bullring converted into a modern shopping center.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

"Holy Wisdom" overlooks the city that became its namesake.

Sofia's legislative center is continuously reinventing itself.

This building has two facades of clashing architectural designs.

A vast Communist-era exhibition space in the Bulgarian capital.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

A striking symbol of the Bulgarian capital.

Eastern Bloc nostalgia, anybody?

A flamboyant five-story building in Bulgaria resembles a crawling snail.

"Unity, Creativity, Beauty."