interior minimalist concrete staircase in tai kwun, a historic building in hong kong

iron black architecture skyscraper line light symmetry monochrome design facade window wood darkness lighting wheel interior minimalist concrete staircase tai kwun historic building hong kong apartment background balcony blue buildings central city colorful construction contemporary corridor downtown empty glass hall historical home house housing inside minimalism modern museum night view people office old outdoor perspective reflection retro room sky stairs steps stones street town travel urban windows