This was taken in South Korea. There's a small neighborhood in the capital, Seoul, that features streets and streets full of art created by local artists. This one in particular is very popular for it's vibrant colors and seamless flow up a flight of stairs. It almost feels like the fish are really swimming upstream.

You can view the rest of the pictures from these streets here: https://steemit.com/travel/@wlsghwjd/street-art-in-seoul-sk :)