Get ready for an in-depth exploration of incredible big buildings throughout history in Expandable Explorations: Big Builds This oversize book features five impressive buildings: the Roman Amphitheater, a Medieval castle, a palace, a suspension bridge, and a skyscraper. Slide-outs allow readers to get a close look at each structure, and this detailed, illustrated book is chock full of fascinating facts, search-and-finds, and the inner workings of big buildings.