Söyembikä Tower, 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. Diverse stabilization methods were used to straighten the tower in the 1930s and 1990s, and it no longer leans.
The tower's construction date is enshrouded in mystery. Several scholars date its construction to the turn of the 18th century, when tiered towers were exceedingly popular in Russia.
Coordinates 55°48'1.713" N 49°6'18.652" E