Art doesn't hang on the walls here — it is the walls. Unit 504W at City Museum Lofts is a rare opportunity to own a residence personally designed by the legendary Bob Cassilly himself — and now, for the first time, it's yours. This 2,189 sq ft loft sits above the world-famous MonstroCity, offering front-row views of one of St. Louis's most iconic landmarks right from your own home. Where else in the world can you truly live inside a museum? Only here. Globally curated artifacts are woven into every surface, corridor, and detail — the result of Cassilly's meticulous, visionary hand. Enter through an ornate iron gate on the fifth floor and step into a space where no two angles are alike and imagination was the only blueprint. Daily Tours Are Available By Appointment - Schedule Yours Today!