A charming beach town in Turkey captures all the colors of the rainbow.

Ancient ruins hidden underneath a modern luxury hotel.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A public urinal so pretty, it was declared a national monument.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Hamburgers are intensely proud of their tunnel beneath the river.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

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

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

The topiary maze at the Habsburg hunting lodge.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

A magnificent collection of imperial armor and weaponry.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.