Residents of Liverpool must have been surprised and confused when, last month, as the evening set in, the shutters of an old derelict building autonomously opened, emanating a bluish glow onto the street. What was revealed behind the old garage door was a space completely taken over by a large fish tank filled with jellyfish peacefully floating and hovering in the gentle blue water.

This secret magical window, which only opens at night is, in fact, a large-scale, site-specific art installation by the artist duo Walter Hugo & Zoniel. “The psychedelic display is intended to have a discordant presence within the building and to intrigue those in the surrounding area,” says Gazelli Art House, who are not only supporting the project but are live-streaming a video from within the tank and into their gallery space in London some 200 miles away. The projection is viewable both from within the gallery but also from the street outside, creating a virtual corridor between the two cities.

The project, which is titled “The Physical Possibility of Inspiring Imagination in the Mind of Somebody Living,” is up until July 27, 2014, at 53 High Park Street in Liverpool. You can also purchase digital versions of the artwork right here.