May, 18, is the international Museum day, when residents and guests of Kazan have the opportunity to visit the museums of the Kazan Kremlin for free. The center "Hermitage-Kazan", Museum of natural history of Tatarstan, Museum of nationhood history of Tatarstan, Exhibition hall "Manege", Museum of the Annunciation Cathedral History will be opened from 10:00 to 18:00. The Museum of Islamic arts – from 9:00 to 19:30.