A mecca of spectacular Art Nouveau architecture, the Hospital de Sant Pau complex is a series of interconnecting buildings with modernist, whimsical façades. Embark on a tour through this new museum as you learn the history behind its construction and recent transformation.

When you arrive in the main courtyard of this stunning Art Nouveau site, gaze upon the exterior or the buildings that surround you on 3 sides, taking in the rich details and embellishments that make each structure unique. The light red brick contrasts against the green windowpanes just as it complements the gold-colored highlights on the roofs. Once you've explored the outside, head inside to check out the interior of the complex.

Learn how the Spanish Catalan architect Lluís Domènech i Montaner designed each of these buildings in the early 20th century, transforming them from the remnants of old medieval structures dating back to the 15th century.

As you wander through the halls, come to understand the evolution of one of the oldest medical institutions in Europe. View displays that show how the Art Nouveau complex was transformed into an internationally acclaimed center for knowledge. On your way out, head through underground tunnels, which lead you to gorgeous gardens that allow you to slowly immerse yourself back into the modern city.