I love the Barbican Centre - especially their exhibition space, the Curve. It's huge arched walls wrap around the back of the hall and showcase ever changing contemporary exhibitions that utilise the dramatic shape and scale of the space. Often these exhibitions are free, though wait times can be long - last year I queued for over an hour to see the Rain Room (though it was absolutely worth it).
The newest exhibit is UVA's Momentum. The room is dark and smoky, 12 steel and aluminium pendulums smoothly sweep light and sound (individual to each pendulum) through the space. Guests sit quietly along the walls, mostly hidden in the dark and only occasionally illuminated by a passing string of light. The light beams are magnified and elongated by the smoke and the curvature of the walls - I found it calming and peaceful. Unlike the Rain Room, it's a difficult exhibit to photograph as flash photography is not allowed (understandably so as it would ruin the experience for other visitors), but I did manage to get one flash free shot to turn out. I love the photo, but it but doesn't accurately capture the mood of the piece.
Please, go see this for yourself. If you can, try to avoid weekends or evenings, the fewer people in the space, the better the experience. It's a real treat. KKxx