The New World Mall in Bangkok, Thailand sounds pretty fantasy and it was for about 15 years until
the Bangkok Metropolitan Administration realized that the builders forgot to
gt permits for building the top 7 floors. Those floors were demolished and the
remained of the building was damaged in a fire in 1996. The project went bust, but all is not lost.
The remains of the building was without a roof and rainwater poured and pooled into the basement floor. The basement became a cesspool and a breeding ground for billions of mosquitos. Local vendors in the area were annoyed with the infestation of mosquitos and decided to take action. They purchased a few fish to rid the pesky mosquitos and boy it is work. The fish breed and multiplied rapidly and soon the building became an urban pond home to thousands of catfish and koi. Locals continue to enjoy their masterpiece and feed the fish regularly.