A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

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

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

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

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Old Danish castle immortalized in Shakespeare's Hamlet.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

An underground city of salt.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Roman ruins top white travertine terraces formed by ancient hot springs.

Monasteries on rock pillars, once accessible only by frayed ropes.

A spectacular cave and a beguiling lake.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The world's largest reflecting pool is just two centimeters deep.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Pilgrimage site for star-crossed lovers.