Superman: The Secrets of the Fortress of Solitude (Superman (DC Comics))
"The Fortress of Solitude has long been Superman's secret place to go to relax. This collection reprints stories  about the Fortress of Solitude from its first appearance in the 1940s (Superman#17)....  There are a number of creators whose work is collected here, including Curt Swan, Wayne Boring, Roy Thomas, and one of my favorite writers, Roger Stern. As with all of these collections, this is a nice glimpse into the past of the world of Superman which many people seem to have forgotten." --Wayne Markley