Highcastle: A Remembrance (Polish: Wysoki Zamek) is a coming-of-age autobiographical novel by Polish science fiction writer Stanisław Lem.
It is a memoir of Lem's childhood and youth years spent in the interwar Lwów (then a Polish city, present-day Lviv in Ukraine), with a good deal of philosophical musing on memory, imagination, and the impact of earlier years on later life.
[2][1] The novel title is a reference to the ruins of Lviv High Castle.
[1] Lem (as well as many critics) stated that the work is not a novel, in the sense that it does not have any fictional elements.
In 2000, MIT Press reprinted it on the occasion of the upcoming 100th anniversary of the writer's birth in 1921.