Mystery of the Crystal Skulls

This Challenge is Destroying all 10 of the mysterious Eridian Crystal Skulls. The 1st Skull is in the same room as the fast travel in a corner.

The 2nd Skull can be seen from the edge and is spinning on the thingy in the middle of the room. It is inside a loop of the very top of the spinning thingy.

The 3rd Skull is down the path around the room. It is hidden in a spire of purple crystals.

The 4th Skull is inside the first side room on the second floor in one of the alcoves.

The 5th Skull is inside the second room. Sitting on top of one of the pillars coming up from the spinning thingy.

The 6th Skull is in an alcove in the room with the claptrap unit.

For the 7th Skull you get off the elevator going up to the special secret "Mario Room" after going up a floor and it is in the snow in the corner.

The 8th Skull is down a level from the uncrossable frost path.

The 9th Skull is in a square room with 4 smaller spinning thingys behind the far corner from either entrance.

The 10th Skull is just before the exit to Elesser.