Austria's Mega Dam
The Kölnbrein Dam in Austria is one of the biggest dams in the world. It is able to hold back over 200 million tons of water.
![The Kölnbrein Dam in Austria is one of the biggest dams in the world.](http://discovery.sndimg.com/content/dam/images/discovery/fullset/2020/2/25/POST%202.jpg.rend.hgtvcom.966.966.suffix/1582666283156.jpeg)
The Kölnbrein Dam in Austria is one of the biggest dams in the world. It is able to hold back over 200 million tons of water.