01. Moonlight Rainbow Fountain
To conclude the list of most expensive fountains, we have the ultimate Moonlight Rainbow Fountain for you. This spectacular fountain located in Seoul is also the world’s longest bridge fountain that set to Guinness World Record with nearly 10,000 LED nozzles! Besides, it has almost 1,140 m in length and pumps almost 190 tons of water per minute, all directly from the river and recycled continuously. Finally, its construction price in 2009 was approximately 2 Billion USD. This price is high because actually it is a bridge.