Game of Thrones
Stairs to the Great Sept
Cersei walks up steps to the Great Sept passing many mourners in episode 5x01 “The Wars to Come”. Cersei and Margaery arrive for Margaery's wedding in episode 5x03 “High Sparrow”.
Appears in 2 additional episodes.
Sons of the Harpy
Tommen attempts to see the High Sparrow.
Mother's Mercy
Cersei begins her Walk of Atonement from the steps.
Source: Winter Is Coming