Church

From Witcher Wiki

This is the Chapel of the Eternal Fire in the Outskirts of Vizima. It is where you will find the Reverend during the day. At night, he can be found next door, at his house.

During the quest Dead Hand of the Past, Geralt gains entry into the Chapel and the crumbling sarcophagus in it's cellar, and thus meets the King of the Wild Hunt and Leo, one last time.