The story features two prominent structures, the Twin Towers, which are part of the World Trade Center. These iconic buildings symbolize the skyline of New York City and hold significant cultural and historical importance. Their mention sets a vivid scene, evoking the bustling life surrounding them and the various stories intertwined with their existence.

In "The Mystery of the Purple Pool," authored by Gertrude Chandler Warner, the setting and the characters' experiences are closely connected to these towering edifices. The Twin Towers not only contribute to the atmosphere of the narrative but also represent the backdrop against which adventures and mysteries unfold, capturing the reader's imagination.