Wandering/Floating Gall bladder

 2 Liver specimens showing the fundus of the Gall bladder lying within the inferior surface of the liver (not able to reach the inferior border)

Inferior surface of Liver

The images above show the Gall bladder lying out of the inferior surface of liver and extending much beyond the inferior border.
The gall bladder fossa is covered by peritoneum.

Last 4 images

Gall bladder is lifted up along its body, fundus and cystic duct in different directions showing that it is not lying in its fossa