Margaret Island used to be an important and historic sacred place. Ruins of churches and monasteries from the 13th century have been preserved on the island. Two buildings mentioned on the UNESCO list – an art nouveau waterworks tower and a music fountain – date from the early 20th century.
Margaret Island is situated between the Margaret and Árpád bridges. It is about 2.5 km long and 500 m wide. Margaret Island was formed at the end of the 19th century from three connected islands - Festo, Fürdő and Nyulak. There are several recreational parks and facilities on the island, such as the Japanese Garden, the Mini-Zoo, the Palatinus thermal spa, a sports ground and swimming pools. A running trail had also been created around the entire island. The island hosts one of the biggest music festivals in Europe – the Sziget Festival.