Skagen, Denmark where the Baltic Sea and the North Sea meet. Due to the very different water densities and chemical differences those two don’t fancy mingling or mixing. As a result they create the most amazing phenomenon of two bodies of water side by side that crash against each other.
No Escape: Dive Into a Black Hole (Infographic) by Karl Tate - When matter is compressed beyond a certain density, a black hole is created. It is called black because no light can escape from it. Some black holes are the tombstones of what were once massive stars. An enormous black hole is thought to lurk at the center of the Milky Way galaxy.