scaf, or scaf_oner, is a French street artist. His trademark is his extremely detailed and realistic style in which he portrays all sorts of animals, skulls and bones, and other scenarios. But not only that, he also does it in a 3D technique, making his art look like it’s about to jump at you!

Wieliczka salt mine, near Krakow, Poland, shows that salt can be an art material too! The mine was first opened in the 13th century, and today, it’s a part of the First UNESCO World Heritage List. And for a good reason! The salt mine, which reaches -327 meters at its deepest point, features underground lakes, 2,000 chambers, and chapels equipped with enormous chandeliers.