A new building has been built next to Tate Modern in London as an extension to the existing museum of modern art. The original building (an old power station, constructed of masonry) had insufficient capacity to handle the visitor numbers. The old museum was designed for 2 million visitors a year, but the museum now welcomes about 5 million viisitors.

The entire outer facade of the new building is done with masonry stones, which are drilled and fixed to size one by one. This is to create an architectural connection between the old and the new museum. The building is 64.5 meters high and consists of 11 storeys above ground.