Taken at lunchtime outside Lancaster Castle, which is also a working prison. The prison guards were spread out on the grass in front of the main gate eating lunch while I snapped the castle from different angles (I felt compelled to ask their permission in advance). It took a little while to notice the lamp post, which smacked of an old black and white Sherlock Holmes flick. Perhaps, I thought, he tracked down some of the inmates ... No wait, that can't be right!
Earlier this morning I took this shot of the castle from a distance to give you a view of the whole structure. See also this shot for the lampost and castle in regular perspective.
Lancaster Castle is located in the very centre of the city; as well as performing its function as a prison, it provides tours and even stages theatrical productions. In fact, there is so much to say about the castle that I'll leave you in the hands of the official tour guide. Are you interested in witches? Queens? Penal history? Take a look - the site even allows you to search the convict database. Fascinating stuff. (There is also a quick-read history of the castle in this link to guide to castles of Europe)