Shows in London and Amsterdam and new works marking 300 years since Christopher Wren’s death reveal artists putting concept first, despite the paralysis of choice offered by infinitely programmable LEDs

Church walking tours, online talks and light art installations in St Paul's Cathedral are some of the events being held to celebrate the work of Britain's most celebrated architect

300 hundred years after the death of Christopher Wren, the London Design Festival has commissioned new pieces of light art for St Paul’s Cathedral and St Stephen Walbrook

Conservationists raise concerns that by cleaning the Paris cathedral's fire-damaged interior stonework it will become "artificially bright"

Victor Ehikhamenor's towering work has been placed beside the building's memorial to the man who led the plunder of the Benin bronzes in 1897