When looking through the 64 "Alder" images at Acclaim Images.com this The Akershus Castle and Church Area was a favorite.
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Description:
The Akershus Castle and Church Area
Parts of the Akershus Castle (Akershus Festning) in Oslo. The Castle was built in 1299 by Haakon the fifth Magnusson. The Castle area also has a Castle Church. Captured in April 2006.

Some related terms for more images:
thomas russ arnestad,  slottskirke,  akershus,  middelalder,  arnestad photography,  festning,  church,  arkitektur,  architecture,  castle,  oslo,  horizontal,