Exhibition: Water

Water covers about 71 percent of the Earth's surface. Find out more about this colorless and odorless substance found all over Earth.

Minimum reward: 1
image by Rafael Garcin


The Romans began using decorative fountains around 6 BC, mostly bronze or stone masks of animals and mythological heroes. By 98 AD Rome had been nicknamed the “city of fountains”, having 9 aqueducts, 39 fountains and 591 public basins.

Play this puzzle with the Pics n Mix app!


Pics n Mix is quick and easy to learn, and the short video below explains everything you need to know.

Just choose a puzzle and click the Play button. Drag and drop the pieces to where you think they should be. If you have chosen "plus rotation" it means some of the pieces are flipped top to bottom or right to left. If you tap a piece once, it will flip from top to bottom. and if you double tap it, it will flip from left to right.