"It's a Mad, Mad, Mad Hotel" is the twelfth episode of The Suite Life of Zack & Cody.
When Zack and Cody's football breaks a painting hung up in the hallway, they find an article on the back saying that someone was coming back for his treasure. Desperate, Zack, Cody, Maddie, London, and Esteban all imagine what their life would be like if they found the treasure, despite London already being rich. They all search frantically for the treasure, but they end up breaking into the bank of Boston. In the end, the real treasure was Muriel.
- Estelle Harris as Muriel, Adrian R'Mante as Esteban, Brian Stepanek as Arwin
- When Esteban is having his fantasy, the symbols on the workers shirt still have a "T" for Tipton.
- This episode title is a reference to It's a Mad, Mad, Mad World.