Lake with fish in the burned mall
"The New World Trade Center" in Bangkok was closed in 1997 - it turned out that the construction had not been complied with rules and regulations. In 1999, as a result of the fire the building lost its roof, and then was flooded due to the rains.
The resulting reservoir attracted mosquitoes and other insects, and they in turn attracted the fish.
As a result, the building has become now an artificial lake, and even fish.
It is interesting that locals protect the inhabitants formed the pond and fish food are sold to tourists. That whatever else is strictly forbidden to throw into the water.