From SCP: Secret Laboratory English Official Wiki

Locations
Site-02, also known as the "Master Site", is one of the many Sites owned by The Foundation. Site-02 contains two experimental technologies, the Micro H.I.D. and C.A.S.S.I.E.
Site-02 is made up of 4 zones, with most SCPs being stored in Heavy Containment.


The 4 Zones each contain a mix of different structures. Certain Zones such as Heavy contain a variety of more structures.


Zones

The 4 Main Sections of Site-02




Structures

Furniture which spawns within the Zones. Most of these will randomly spawn.




Conceptual Locations

These locations are concepts represented in gameplay, but do not correspond to a physical location as of yet.