http://www.huffingtonpost.com/2014/06/20/the-golden-girls-_n_5512554.html?utm_hp_ref=mostpopular

1. Estelle Getty suffered from a severe case of stage fright.

2. Bea Arthur actually hated cheesecake.

3. Rue McClanahan got to keep her wardrobe.

4. Betty White was originally cast as Blanche on the show.

5. The girls can count royals among their biggest fans.

6. The show would've ended earlier if Bea Arthur had her way.

7. Estelle Getty spent most of her time in the makeup chair.

8. The ladies almost had an extra house guest.

9. "The Golden Girls" (https://www.datalounge.com/thread/14108556-14-things-you-didn-t-know-about-the-golden-girls) had plenty of gold.

10. The friendship ended when the cameras stopped rolling.

11. Estelle Getty had a phobia of death.

12. Some famous faces have graced the set.

13. Betty White is a serious gamer.

14. Bea Arthur wasn't always an actress.

Those are all good ones. Theres also much more. Heres a few :
The layout of the house set interior does not match the outside shots.
There is an exclamation mark on the front door
Dreyfuss was played by 2 different dogs
At the dinner scenes in the kitchen, they would set a place for someone on the table nearest to the shot. But no one ever sat there. This was obviously due to the fact they would be blocking the others.
Bea Arthur actually hated cheesecake