'Groundhog Day' Business is Booming at 'Punxsutawney' Inn

2/2/2016 12:30 AM PST BY TMZ STAFF

0201-bed-and-breakfast-groundhog-day-COLUMBIA_PICTURES-01Bill Murray starred in "Groundhog Day" 23 years ago, and the place his character called home continues to cash in ... especially today, February 2nd.

Royal Victorian Manor in Woodstock, IL was the site of Punxsutawney's Cherry Street Inn -- the joint Murray's character inhabited. 

The owners tell us the 5 bedroom B&B sold out weeks ago to celebrate the day. In the spirit of capitalism, the owners hiked the room rates 15% for the occasion.

Everyone wants to stay in Murray's room, so they can drop a toaster in bathtubs or dominate "Jeopardy." Problem is ... only the exterior appeared in the flick.

Still, guests can feel a part of movie history, and there are even nearby memorials ... like a plaque commemorating the puddle Murray stepped in every morning ... BING!