The eight Dragon Priest masks and Konahrik, plus a house and a spouse.
Hevnoraak Mask
Valthume.
Krosis Mask
Shearpoint.
Morokei Mask
Labyrinthian.
Nahkriin Maskmissable
Skuldafn. Only reachable during the main quest; there is no second chance once you leave.
Otar Mask
Ragnvald.
Rahgot Mask
Forelhost.
Vokun Mask
High Gate Ruins.
Volsung Mask
Volskygge.
Konahrik Maskmissable
Place all eight masks on the shrine in Bromjunaar Sanctuary (wear the Wooden Mask in Labyrinthian to get there). Needs Nahkriin.
Buy a house
Any of the hold-city homes.
Get married
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