Budapest with various lands operated by the Budapest City Gardening Ltd. The wealth of greenspace afforded by Budapest's parks is further augmented by a network of open spaces containing forest, streams, and lakes that are set aside as natural areas which lie not far from the inner city, including the Budapest Zoo and Botanical Garden (established in 1866) in the City Park. The most notable and popular parks in Budapest are the City Park which was established in 1751 (302 acres) along with Andrássy Avenue, the Margaret Island in the Danube (), the People's Park, the Római Part, and the Kopaszi
Budapest there are forty theatres, seven concert halls and an opera house. Outdoor festivals, concerts and lectures enrich the cultural offer of summer, which are often held in historical buildings. The largest theatre facilities are the Budapest Operetta and Musical Theatre, the József Attila Theatre, the Katona József Theatre, the Madách Theatre, the Hungarian State Opera House, the National Theatre, the Vigadó Concert Hall, Radnóti Miklós Theatre, the Comedy Theatre and the Palace of Arts, known as "MUPA". The Budapest Opera Ball is an annual Hungarian society event taking place in the building of the Budapest Opera ("Operaház") on the last