E-Luminate: Cambridge University buildings bathed in light
Buildings in the centre of Cambridge are being bathed in light and colour each night until 15 February as part of the city's e-Luminate festival.
Crowds gathered to watch the festival launch on Wednesday night as patterns lit up the University's Senate House.
Festival founders Alessandra Caggiano and Hugh Parnell said its aim was to help people see "the richness and diversity of our iconic buildings and public spaces".
They started with a small pilot event in 2013 and in February 2014 held a second festival, which was three times bigger than the previous year's.
Mal Rosycka's installation at Great St Mary's Church is called the Art of Sustainable Light and uses up-lighters and spot lights "to reveal all its architectural details".
The organisers hope the festival, which runs from 17:30 to 23:30 GMT until 15 February, will become an annual event.