The ROOM is a 43 ㎡ triangular space surrounded by 4 meters-high walls. The walls are built in concrete blocks. The external surface of the walls is raw， the internal one is painted in light pink (RAL 3015). The ROOM has one circular entrance measuring 2 meters in diameter， and a smaller porthole measuring 60 centimeters placed 2，8 meters above the ground level. Both holes are realized with precast concrete elements， such as common sewage headwalls. If needed， the entrance of the ROOM can be closed by placing a couple of solid wood panels in front of it. The ROOM includes certain things and excludes others： it separates an interior from an exterior space. It produces a small region where the urban pressure of Mexico City is both absorbed and provisionally suspended.
▼鸟瞰展馆，the ROOM pavilion
Inside， a silent “fragment of desert” holds the memory of the origin of the city. It doesn’t suggest any specific activity， nor tries to forsee them. Its gentle slope is generous enough to accept the unpredictable.
▼“沙漠碎片”带回城市的沙漠记忆，the “fragment of desert” holds the memory of the origin of the city
▼展馆的圆形出入口， the ROOM has one circular entrance
▼墙壁的原型舷窗，the round porthole
Outside， the walls provide 120 m2 of total exhibition surface for the festival purposes. But they can also be painted， used to hold temporary structures， covered with advertisment， vandalized.
▼展馆外墙可用作多种活动，the external wall can be used for different activities
Finally， the ROOM can be easily dismantled or， rather， demolished. Its ordinary construction material can be collected and recycled. New concrete blocks can be produced from the old ones. But the ROOM is meant to stay.
▼别样的城市景观，the unique concrete block