The Alexander Column was designed by the French-born architect Auguste de Montferrand, built between 1830 and 1834 with Swiss-born architect Antonio Adamini, and unveiled on 30 August 1834 (St.
The column is a single piece of red granite, 25.45 m (83 ft 6 in) long and about 3.5 m (11 ft 5 in) in diameter.