OverUnder helped Monacelli with this long-sought reprint of this classic of architectural history and criticism, surveying a movement that would inspire architects, fantasists, and filmmakers alike.

It is an architectural concept as alluring as it is elusive, as futuristic as it is primordial. Megastructure is what it sounds like: a vastly scaled edifice that can contain potentially countless uses, contexts, and adaptations. Theorized and briefly experimented with in built form in the 1960s, megastructures almost as quickly went out of fashion in the profession. But Reyner Banham’s 1976 book compiled the origin stories and ongoing mythos of this visionary movement, seeking to chart its lively rise, rapid fall, and ongoing meaning.

Now back in print after decades and with original editions fetching well over $100 on the secondary market, Megastructure: Urban Futures of the Recent Past is part of the recent surge in attention to this quixotic form, of which some examples were built but to this day remains—decades after its codification—more of a poetic idea than a real architectural type.