Occasus

From Tardis Wiki, the free Doctor Who reference

Occasus was an ancient burial planet, created as a graveyard for many species from across the universe. It was initially home to 14,000 native lifeforms but after the Last Great Time War, was only populated by common woodland creatures. It was looked over by Fred, who claimed the planet had not received visitors in 75,200,256 years, and managed by off-world overseer Sacristan Hinge.

It was full of millions of gravestones across its many forests and rivers, such as the Forest of the Armoured Lynx. It acted as the burial grounds for species including the Mizrack, Long Dark, Unbanay Abar, Shepherds of Phase, Slingsait Overlords of Yorn, Hiyutrasnioph, Ancient Frimians, Formless Concepts of the Dry World, Razor Fish Emperor, and Family of Blood. However, it was most famous for the Incorporation, who built giant golden pyramids as part of a plan to return themselves to life, which eventually became the poster sight for the planet. (AUDIO: Planet of the End)