Decumanus and triumph arch of Septimus Severus Leptis Magna

africa city heritage leptis magna septimus severus site unesco world africa alley antique antiquity arch archeological archeology arches architecture art artwork avenue building buildings city column culture decayed decumanus deserted destination dig digging excavation highway historic historical history house houses landmark left libya made marble metropolis north path pavement piece pillar road roman route ruin sight site stone street structure tempel tourism tourist town trail travel triumph