Miyako City, Toru Hanai / Reuter

Wall of water: This combination photograph shows one of the most noted images from the March 11, 2011, Japanese tsunami -- a defense wall in Miyako being overwhelmed by the wall of water thrown up by a magnitude 9.0 offshore earthquake, one of the largest on record. The second photo was taken on Feb. 17, 2012.

Then and now: The 2011 Japan tsunami

Last year's tsunami in Japan caused what is estimated to have been the most expensive natural disaster ever, with more than 15,000 lives lost. Click here to see a series of photos that show the destruction caused by the 2011 tsunami and the same scenes nearly a year later.

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