Building A (Emory University) as Hawkins National Laboratory
Hopper sneaks into the lab.
Source: IMDb
“Chapter Five: The Flea and the Acrobat” Filming Locations
Stranger Things episode “Chapter Five: The Flea and the Acrobat” was filmed in Atlanta, Stockbridge, Stone Mountain, & Conyers in the United States of America.
Bethany Cemetery as Cemetery
A funeral is hosted for Will after his 'body' is discovered.
Source: Stranger Things — Wikia
Lake off Daniel Road Southwest as Hopper's Trailer
Hopper wakes up back in his trailer after his excursion to the lab and searches his trailer for listening devices.
Source: Filming Locations Map
Patrick Henry High School as Hawkins Middle School
One of the goons from the lab comes to investigate the AV club for clues on the kids' identity.
Rockdale County Junkyard as Junkyard
Eleven accidentally uses her powers on Lucas and runs off.
Source: IMDb