Windows of the Devils' Museum, Lithuania
"The Devils' Museum" is a museum in Kaunas, Lithuania devoted to objects depicting devils from cultures all over the world. It is a fascinating place and was opened to house the collection of a painter named Antanas Žmuidzinavičius after he died. A lot of the current exhibits were donated later, however, and the museum accepts appropriately-themed gifts to add to the inventory.
(As fate would have it, I was wearing devil-decorated boxers the day I visited, but decided not to ask the staff if they would like them. Probably a sound decision.)