![An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/15/e6dcfb6c48024ba5adf2dcd8bbfd74f4.jpg)
An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)
![An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/15/f785fd1be02a45fcaddaa5808ba4f620.jpg)
An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)
![An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/15/662d46f42cd64f1398bd52e5ee397916.jpg)
An aerial photo shows a fishing boat floating down a river in Ullahpara, Bangladesh. The surreal patterns are created thanks to the flowing current and algae in the water. (Photo/VCG)