Many structures were cracked shells, roofless, windowless and standing upright precariously. The orangery is now roofless and windowless. Interrogation rooms should be windowless, soundproof, dark and without toilets. The exhibit used red-lights to dimly illuminate the enclosures within the windowless building. These wall paintings counteracted the claustrophobic nature of the small, windowless rooms of Roman houses. The exterior walls of houses were unadorned, blank and windowless. He was unimpressed with the labs, describing the windowless basement as "squalor". The building is two floors, nearly windowless with a very large courtyard in its interior. To the north is a long windowless vestibule. The windowless basement is characteristic of Pinter's sets. One lake is overlooked by the derelict, windowless control tower. Cell doors are usually opaque, while the cells may be windowless. This creates a dark, windowless chamber which suggests a womb. Stanton retreated into a small, dark, windowless office, emerging periodically with new script pages. Operating rooms are generally windowless and feature controlled temperature and humidity.