The Amiri Diwan recently inaugurated the new Kuwait National Cultural District (KNCD), which comprises Sheikh Abdullah Al Salem Cultural Centre, Sheikh Jaber Al Ahmad Cultural Centre, Al Shaheed Park, and Al Salam Palace. With a capital cost of more than US$1 billion, the project is one of the largest cultural investments in the world. The Kuwait National Cultural District is a member of the Global Cultural Districts Network. Al Shaheed Park is the largest green roof project ever undertaken in the Arab world. The annual "Hala Febrayer" festival attracts many tourists from neighboring GCC countries, and includes a variety of events including music concerts, parades, and carnivals. The festival is a month-long commemoration of the liberation of Kuwait, and runs from 1 to 28 February. Liberation Day itself is celebrated on 26 February.