Muhammad Ali -- Going to 'The Greatest' Burial Site ... Col. Sanders, 'Happy Birthday' Writer There Too (PHOTOS)

Muhammad Ali will be laid to rest in truly hallowed ground because the cemetery is chock-full of celebs.

After his memorial services -- Thursday and Friday -- Ali will be buried in Louisville's Cave Hill Cemetery which is already the final resting place to:

- THE Colonel Harland Sanders of KFC fame
- Meriwether Lewis Clark Jr. ... who created the Kentucky Derby
- Patty Hill ... who wrote the "Happy Birthday" song
- Pete "The Gladiator" Browning ... the baseball player who popularized Louisville Slugger bats
- J. Graham Brown ... inventor of the Hot Brown Sandwich (look it up, it's delicious)