Museum of Memories is a museum Dunhill runs in Harvest Moon 3DS: A New Beginning.
The blueprint for the museum is given to you as a gift from Dunhill after you received the Alarm Clock blueprint from him, have his friendship at 45,000 FP or more, and have completed Town Restoration Plan #5.
The museum lets the player view at the post wedding character portraits of all the bachelors and bachelorettes. To look at a picture you want to see talk to him at the shop counter and then select the character artwork you would like to view. The picture will appear on the top screen of your Nintendo 3DS.
The Museum of Memories open from 10:00 am to 6:00 pm and opens on Friday, Saturday and Sunday.