Chalmers’ Close was one of there closes that was part of the Open Close arts temporary installation that was part of the Edinburgh Festival 2017, below is the result
From https://www.open-close.co.uk/ — Open Close is a temporary art installation project led by a collaborative team of artists, designers and architects. Using sound, light, sculpture, design and visual art Open Close will see interventions large and small, overt and subtle scattered across Carrubbers Close, Chalmers Close and Trunks Close off Edinburgh’s Royal Mile.