
1) History museum in Egypt 2) Museum in Alexandria
Found on
https://www.crosswordclues.com/clue/musaeum

The Musaeum or Mouseion at Alexandria (Μουσεῖον τῆς Ἀλεξανδρείας), which included the famous Library of Alexandria, was an institution founded by Ptolemy I Soter or, perhaps more likely, by Ptolemy II Philadelphus. This original Musaeum (`Institution of the Muses`) was the home of music or poetry, a philosophical school.....
Found on
http://en.wikipedia.org/wiki/Musaeum
No exact match found.