The Lyceum is listed as one of the objectives for the No Stone Unturned achievement, yet nobody seems to know where it is. Where is it?
The Lyceum is one of the random dungeons in the Southern Highlands. It has a fixed spawn point but shares it with several other random spawns. The entrance area looks like this:
Its spawning place is slightly northeast of the entrance to the Southern Highlands:
This spawn point is shared with The Revenge of Gharbad, the Empty Servants House, Ancient Pyre or the event pictured below, among others (you can see the similarity of the place, also it seems like it's the only place which can host such a large environment):