I have such a fascination with ancient civilizations and their "lost" cities buried under years and years of development's rubble -- so much history! Imagine that some of these fantastic structures were so well designed and constructed that they have lasted to today (and not to mention the fact that they have outlived some of our seemingly modern structures without a blink!). I came across this
Lost Cities Gallery from National Geographic that offered some unique perspectives to the generic "textbook" ones.
Palenque, Mexico (Mayans)
Great Enclosure, Zimbabwe (Shonas)
Palmyra, Syria (famous trade spot between Mesopotamia and Persia
and later under Roman control)
Tanis, Egypt (former capital of Egypt)
Mesa Verde, Colorado (Anasazis)
Petra, Jordan (Nabataeans)
... [notice the person in the "doorway"]
Persepolis, Iran (Persian Empire)
Mohenjo Daro, Pakistan (Indus River Valley)
Ancient Troy