Manor in the Frogner Park, and part of Oslo City Museum.
In summer you can join a tour of the manor's magnificent halls (price 60 NOK, not included in the Oslo Pass).
Frogner Manor House has beautiful interiors from 1750-1900. Among the attractions are Bernt Anker's ballroom (from the 1790s), Asta Nørregaard portraits and many landscape photos from Christiania (Oslo) in the 1800s.
The museum has been located in Frogner Manor House since 1905.
The Municipality of Oslo bought the manor in 1909.
Norwegian name: Frogner hovedgård