Tomb of Rassilon
From Tardis Wiki, the free Doctor Who reference
The Tomb of Rassilon was a large tower in the Death Zone on Gallifrey. In the tower there was a big stone coffin, containing the physical remains of Rassilon.
The tomb is also known as The Tower of Rassilon and The Dark Tower.
It had three entrances, one from the roof, one from the caves and the frontal entrance. There were a variety of obstacles making the journey into the Tower complicated. (DW: The Five Doctors)
