Image: Easter Island, Pixabay CC0

I have walked through the barren remains of Babylon in Iraq and the ancient Roman city of Antioch, the capital of Roman Syria, which now lies buried in silt deposits. I have visited the marble ruins of Leptis Magna, once one of the most important agricultural centers in the Roman Empire, now isolated in the desolate drifts of sand southeast of Tripoli. I have climbed at dawn up the ancient temples in Tikal, while flocks of brightly colored toucans leapt through the jungle foliage below. I have stood amid the remains of the ancient Egyptian city of Luxor along the Nile, looking at the statue of the great Egyptian pharaoh Ramesses II lying broken on the ground, with Percy Shelley’s poem “Ozymandias” running through my head: