Necrotorium 

A Victoria Era room designed for the purposes of preserving and displaying of collections of dead things, such as insects, birds, and small animals.

She was often found in her father's necrotorium engaged in the cataloguing of her father's rather extensive Vireo collection.

Necrotorium by Irkster February 2, 2021

Nerdotorium 

a room of which consists of many nerdy things. such as a computer room or a room where the centre-peice is a nerdy object

"is chris stuck inside his room" - Mom
"you mean nerdotorium" - IT Dad

Nerdotorium by blingboy2win October 23, 2012