arched doorway in the old wonderboom fort with roofless inner structure

adjacent africa angle arched arches architecture background bare beauty bold broken brown color coloured connecting construction crumbling damaged daytime decay decommissioned dilapidated door doorways engravings environment floor fort graffiti grunge grungy historic image inner light material mortar old opening openings perspective plaster pretoria red remnants robust rock rooms rough ruin ruins rust south stained stone strong structure surface texture vegetation view vintage wall walls weathered wonderboom