Then, scroll down a bit and the truth will be revealed to you. Well this mystery photo is of neither.
Stalactites are icicle-like formations on the roof of caverns.
As more water falls the stalactite grows longer. If there room left to grow, it will keep growing to the floor. The only limits to this formation's growth is the size of the room and how hard the connection to the roof of the cave the rock is connected. If it's not a hard connection, the rock will fall and break.