Vivid graffiti art blooms on derelict walls of Zagreb's abandoned university hospital, shrouded by budding spring branches

graffiti urban street art abandoned zagreb croatia university hospital decay spray paint colorful art wall mural derelict ruins concrete urban decay foliage spring branches buds nature reclaiming desolate architecture creative spray urban culture expression outdoor creative decay overgrown artwork urban exploration graffiti wall street culture vibrant tag paint building hospital desolation springtime youth culture abandoned places exploration neglected urbex tagged