Found on the wall of the mess hall, this floor plan of the Laboratory shows the four main levels hidden deep within the mountain. Beginning in 1987, construction wasn’t completed until 2010. Three more years were then spent retro-fitting the updated specs for the particle accelerator, until the ill-fated day in the summer of 2013 when Ben attempted his experiment for the first and last time.
The lightning bolt insignia for Excelsior Technologies (the company behind the construction) can be found almost everywhere within the lower levels of the Laboratory.