Well Artists Florian Ortkrass, Stuart Wood and Hannes Koch have created a Rain Room, a new 3D exhibition at London's Barbican Centre.
Visitors stand in a room filled with drops of falling water, but visitors remain dry, as the water halts above them. 3D sensory cameras fixed to the ceiling of the Rain Room, meaning every person who walks into the 100 square metre space is recognised.
It's creators, Ramdom International, have described it as "a social experiment" which "extracts behavioural experiences". They wanted to give people a cocooning experience of being immersed in a 3D Rain Room and watch their rection. They have said that the more excitable vistors tend to go straight in, while the shy people wait to see others reaction before going in.