The Palácio da Pena is a romanticist palace located in Sintra, Portugal. Built in the 19th century, it showcases a mix of architectural styles, including Gothic, Manueline, and Moorish influences. The palace is perched on a hilltop, offering stunning views of the surrounding landscape and the nearby Moorish Castle. Surrounded by lush gardens, the Palácio da Pena is a UNESCO World Heritage site and one of the most important examples of 19th-century architecture in Europe. Its vibrant colors and intricate details attract thousands of visitors each year, making it a popular tourist destination in Portugal.