We are directly underneath
the GEOLOGY lab,
The Big Bang Theory Season 5, Episode 17
Well, GEOLOGY
The Big Bang Theory Season 7, Episode 20
How did you figure out
that it was the GEOLOGY lab?
The Big Bang Theory Season 7, Episode 3
Ignore him, he's just cranky
because Bert from the GEOLOGY lab
The Big Bang Theory Season 10, Episode 9
to the GEOLOGY lab
or the chemistry lab.
The Big Bang Theory Season 7, Episode 3