Statues of Saints on the north Colonnade of Saint Peter's square.Left to Right: St Thecla (1st century); St Vitalis (died c171); St Petronilla (Petronille) (1st century); St Leonard of Noblac (died c559).The Colonnades consist of 284 Doric columns and 88 pilasters of travertine marble. These columns; 13m. tall; are arranged in four rows. With the trabeation surmounted by a balustrade; the overall height is 21m. Bernini built two straight covered wings (Charlemagne left; Constantine right) 120 m. long; to link with the basilica's facade. 140 statues of Saints are on the colonnades.( Saint Peter's basilica; basilique Saint-Pierre; Petersdom. )( St. Peter's Square; Place Saint-Pierre; Petersplatz )Vatican 2018