Charles Rennie Mackintosh designed the lighthouse in 1895. This building became the warehouse for the Glasgow Herald Building after being built but in 1999 it became a center for architecture and the arts in the buildings surrounding the lighthouse. The lighthouse features a spiral staircase to the top where there are windows that give a great view of Glasgow. There is a museum on the work done by Charles Rennie Mackintosh below and therefore is a main tourist attraction now in Glasgow. 

Citation: https://www.thelighthouse.co.uk/about/history