Saint Column Trinity is a pedestal erected in 1716–1754 as thanksgiving for fighting the epidemic in Olomouc. The Pillar was built in the Upper Market Square by Wacław Render, an imperial architect and city stonemason. In 1754, the column was consecrated in the presence of Empress Maria Teresa and her husband Franciszek I Stefan.
The building is 35 m high, which makes it the largest sculpture in the Czech Republic. The pole is finished with a gilded copper sculpture of the Holy Trinity. On the column stem are sculptures of Archangel Gabriel and the Assumption of the Blessed Virgin Mary. The pedestal hides inside a small chapel with reliefs depicting the sacrifice of Cain, the sacrifice of Abel of the first-born lambs, the first sacrifice of the Flood, the sacrifice of Abraham, and the crucifixion of Christ. In the background of this bas-relief you can see the panorama of Jerusalem and Olomouc.
In 1995 the pedestal was included in the national monuments of the Czech Republic, and in 2000 it was placed on the UNESCO World Heritage List.