The Tiles of the Oceans is a monolithic wall of 54,000 classic blue and white tiles hand made in Portugal. The mural, six stories high and 240-feet-long, weaves through the interior and exterior of the Lisbon Aquarium, inviting people inside to cue up for the main exhibit. The images were first scanned on the computer and then pixilated. They are created from 64 geometric tile designs, each a percentage value of dark to light in 10 degree increments. Thirty different creatures from each of the world's oceans were selected to co-habitate this one space.