What started as an attempt to get rid of pesky mosquitoes has now become one of the world’s most bizarre koi ponds to date. Abandoned after someone set the building on fire in 1999, the New World mall in Bangkok, Thailand is now home to hundreds of exotic koi and catfish.
Bangkok’s New World mall was built in the 1980s. Over the years, the building faced various disasters: the mall was forced to close in the 1990s because the top seven floors were never approved in the original construction permit; an arsonist set the building on fire in 1999; a person was killed by falling debris during demolition years later. After the building’s top floors were removed, the mall was left abandoned without a roof, inviting rainwater to fill up the bottom floor.
Enter the mosquitos. As water filled the abandoned mall—now just four stories tall—mosquitos began multiplying like crazy. Once the growing swarms of mosquitos started bothering vendors and residents in the area, locals decided that it was time to fix the problem. That’s when they started adding koi to the flooded building.