Wiktionary
fall upon
vb. To fall on; to experience; to suffer.
WordNet
fall upon
v. find unexpectedly; "the archeologists chanced upon an old tomb"; "she struck a goldmine"; "The hikers finally struck the main path to the lake" [syn: strike, come upon, light upon, chance upon, come across, chance on, happen upon, attain, discover]
Usage examples of "fall upon".
As her eyes drift down from the picture they naturally fall upon the figurine of the dear Old-Fashioned Girl.