For the past two weeks, The Office cast has been filming the series finale, "Finale". Today is their last day on set. This episode will air May 16th, 2013.
Mindy Kaling with Greg Daniels
Melanie Griffith revealed that her daughter, Dakota Johnson, is guest starring in "Finale"
Ed Begley Jr. is also guest starring.
Possible set location, but unsure. A+ song reference, though, Angela.