The Sculpture Park is a small green zone in the immediate North of the Opera. Sculptures from Botero and other artists of international fame decorate the park. The park is part of Cafesjian Museum - the Armenian version of Guggenheim. The main part of the museum is in the Cascades - an Art Deco version of the Hanging Gardens of Babylon stretching nearly the height of the Empire State Building. It's a massive white stairway up a hillside of central Yerevan, decorated with green stretches, fountains and waterfalls. Higher level of the Cascades give a spectacular view of Mount Ararat and panorama of central Yerevan with its hilariously multi-colour roofs. The first floor and the bookstore of the museum as well as the indoor escalators to the top of the Cascades are free of charge.