This is Houston. Then and now.
Updated 2219 GMT (0619 HKT) August 28, 2017
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(CNN)Tropical Storm Harvey tore through Houston, dumping record rain, swelling bayous and leaving the nation's fourth-largest city under water. It will take a while for the full extent of the devastation to become clear. But these photographs capture what the vibrant city looked like before -- and what it looks like now.