Well then, in Luke 21 Jesus "plainly" told His disciples and those living in 1st century Jerusalem ("this generation") that they would see "Jerusalem surrounded by armies" and for those living "in Judea to flee to the mountains."
You can't get much more literal than that.
Unless of course you really feel the need to invent red heifers, rebuild a long destroyed temple, and resurrect a Roman army just to knock it down again.