A display of award winning science photos has been blown up to billboard size and put on display along the Euston Road.
The 20th annual Wellcome Image Awards are a celebration of science, medicine and life.
There is a blurring in the imagination between a really close up photo of some part of nature, which when enlarged to hundreds of thousands of times its original size, can look like abstract art that would adorn the walls of a posh gallery.
This time the gallery are the windows of the Wellcome Trust. Note, not in the Wellcome collection, which is the public museum next door – head one block towards Euston Square tube station for this public exhibition.
A small sign below each of the huge images explains what they are of, and how they were made.
For a chance to win a photographic print of one of the images, vote for your favourite before 31 August 2017.