monolithic concrete staircase in the courtyard of an elite country estate. wall decoration with horizontal aluminum panels. wide

background concrete architecture stairs abstract staircase step construction exterior structure stone modern outside outdoors stairway exit design building wall pattern empty stair white angle nobody light entrance grunge lines city front grey symmetrical porch urban cement climb courtyard black handrail travel old steel outdoor landmark detail path rendering monolithic elite country estate decoration horizontal aluminum panels wide panoramic multi-chamber windows estate panels windows rendering perfect illustration for real advertisment