Latvia's Ventspils is a modern European city with a wide range of entertainment and tourist sights. Its ice-free, world-class port is a major transit hub. Ventspils is proud of the cleanest streets and smoothest driving surfaces in the country. It is known as the brightest city in Latvia, with not a single unlit street or square after dark. During the summer, attractive water fountains and flower arrangements around the city please the eye and uplift the soul. Ventspils is especially proud of its award-winning success in renovating existing buildings and constructing new ones. The once–decrepit castle of the German Knights of the Livonian Order now houses one of Latvia's most modern digital museums. Several new cultural monuments have also become popular city landmarks, including Sea Stone Sculpture, Sun Boats Water Fountain, and Statue of Krijanis Valdemars. Present-day Ventspils has acquired an attractive new face with the well-equipped Ventspils Olympic Center. The recently unveiled Children City is the largest park of its kind in the Baltic.