Bricked Up?

An abstract for Saturday, I find that I'm drawn to the many walled-up window and doorways in old buildings that ordinarily one may pass without heed. "What did these windows once look into?", I find myself wondering, and "who were the people who once walked through these doorways?". These ghosts from the past intrigue me to the point where I find them more and more appealing. If only buildings could talk eh?