Toward the back of the old Frostmann apple orchard - later used as the archery range - we've built a greenhouse.

This is not to mention what a boon to the buildings the greenhouse is: the Castle, for instance, is filled with pots of flowers year-round.
Maggie gave me a tour of the greenhouse the other day and you can join the tour by watching this video.
During our visit, my kids and I ate some of the oranges - yes, oranges! - that Maggie has been growing. These little guys pack some Vitamin C punch. Wow.