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We look ahead and pick the best exhibitions to see in London's galleries and museums, opening this July.

Heavenly glow-up: Luminiscence at Westminster Cathedral

A snap from when Luminiscence came to Manchester. Image: Luminiscence

Westminster Cathedral boasts some stunning architectural flourishes, and Luminiscence's dazzling projections promise to bring out the best in them. This 360° projected light show will bathe the sacred space's windows, walls, pillars and ceiling in remarkable shifting colourscapes. It will also digitally realise the cathedral's never-completed mosaic-adorned domes, offering audiences a glimpse into what might have been. Plus there's a choral soundtrack, with narration by Hugh Bonneville. Read our full preview.