TMZ has obtained a photo of Tiger's other home in the Windermere development near Orlando, Florida -- right around the corner from Tiger's main home -- and as of yesterday, there are two new vehicles of interest parked in front of house #2 .... a red Buick and a baby stroller.

FYI -- Tiger and Elin have a 9-month-old son together.

It's unclear whose vehicle is in front of the house -- or who, if anyone, is staying in house #2 -- but it's the first hint of movement from Tiger since the initial incident last Friday.