<p>Perched atop the verdant hills of Sintra, Palácio Nacional da Pena stands as one of Europe's most distinctive and vibrant expressions of 19th-century Romantic architecture. This fantastical palace, with its candy-colored towers, ornate battlements, and eclectic decorative elements, appears like a fairytale castle materialized among the mists of Portugal's Serra de Sintra. Commissioned by King Ferdinand II and built between 1842 and 1854, the palace represents a deliberate architectural fusion that captures the Romantic era's fascination with historicism and exoticism. The design by Baron Wilhelm Ludwig von Eschwege incorporates Neo-Gothic, Neo-Manueline, Neo-Islamic, and Neo-Renaissance elements, creating a harmonious pastiche that celebrates Portugal's architectural heritage while incorporating influences from across Europe and beyond. The palace's exterior is immediately striking, with vividly painted facades in shades of yellow, pink, and purple, punctuated by decorative battlements, mythological statues, and elaborate tilework. These vibrant colors, which can be seen from miles away, were revolutionary for their time and embody Romanticism's rejection of classical restraint in favor of emotional expression and visual drama. Inside, the palace's rooms maintain this eclecticism, featuring carved ceilings, panoramic murals, Moorish-inspired tiles, and an impressive collection of European decorative arts. The surrounding Pena Park enhances the palace's dreamlike quality, with over 200 hectares of exotic trees and plants from around the world, hidden pathways, ornamental features, and spectacular viewpoints overlooking the Atlantic coastline. As the best-preserved example of a Romantic palace in Europe and part of the UNESCO World Heritage Cultural Landscape of Sintra, Pena Palace captures the artistic and philosophical spirit of 19th-century Romanticism while offering visitors a glimpse into the refined royal lifestyle of Portugal's constitutional monarchy period.</p>