Dragon door knocker
Frog Door Handle
A secret door ~ St Botolph's Church, Cambridge, UK.
Detail of a door--wood and iron blogbyjoyce: Gol Stavkirke, Norway
An Unusual Door (Finland)
Blue Gothic Door: St John The Divine by curry15, via Flickr
Hand hardware on grey doors
Petropavlovka, Krasnoyarsk Krai, Russia