Abondoned structures are seen in Ilha Seca at Guanabara Bay in Rio de Janeiro, Brazil, on November 13, 2015.Ilha Seca, a Texaco fuel depot abandoned by the corporation in the 1950s, will be used again by installing seafood and fish farms at the vacated fuel container structures.  AFP PHOTO / YASUYOSHI CHIBA        (Photo credit should read YASUYOSHI CHIBA/AFP via Getty Images)