Söyembikä Tower (Tatar Cyrillic: Сөембикә манарасы, Latin: Söyembikä manarası; Russian: Ба́шня Сююмбикэ́), also called the Khan's Mosque, is probably the most familiar landmark and architectural symbol of Kazan. Once the highest structure of that city's kremlin, it used to be one of the so-called leaning towers. By the early 20th century, its inclination was estimated at 194 centimeters (76 in). Diverse stabilization methods were used to straighten the tower in the 1930s and 1990s, and it no longer leans.