From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

A cruise ship retraces the the route of the doomed RMS Titanic, 100 years later.

The rusting relics of Southampton's former luxurious flying boat industry.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Breathtaking and huge 430 year old maps of Italy.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

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

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

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

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

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

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.