The Palazzo dei Diamanti is a historic building located in Ferrara, Italy. It is renowned for its unique façade, which is adorned with over 8,500 diamond-shaped stones, giving it a distinctive appearance. Constructed in the late 15th century, the palace was designed by architect Biagio Rossetti as part of the Renaissance urban planning of Ferrara. Today, the Palazzo houses the National Gallery of Ferrara, showcasing a rich collection of art from the Emilia-Romagna region. The building is also a popular venue for temporary exhibitions, attracting visitors interested in both its architectural beauty and cultural significance.