Gripsholm Castle -- Built and remodeled during the 14th, 16th and 18th centuries, the fortress of High Counselor Bo Johnsson Grip on his private island off the village of Mariefred -- later a royal residence -- now houses the national portrait collection, featuring images of Swedish-born celebrities from the Middle Ages to the modern day. 

Castle interiors (off limits to unofficial photography, as it is for every public edifice in Scandinavia) feature well-preserved period furnishings as well as a baroque theatre inside the main turret.

This photo is taken with the Canon G1 digital camera.