Trajan and Tiberius arch at Leptis Magna, Libya, Unesco World Heritage Site

africa city heritage leptis libya magna site tiberius trajan unesco world africa antique antiquity arch archeological archeology arches architecture art artwork building buildings city column culture decayed deserted destination dig digging excavation historic historical history house houses landmark left libya made marble metropolis north piece pillar roman ruin sight site stone structure tempel tourism tourist town travel