Israel - Atop the temple mount we find holy Muslim sites, including the unassuming Al-Aqsa mosque, 3rd holiest site of Islam, and the more audacious Dome of the Rock, which in theory covers the former site of the Jewish Temple, and the rock on which Abraham was ready to sacrifice Isaac.
But one thing we can know for sure is the status of the Temple Mount. This is the place God chose to put His Name. The Bible says there is going to be put a Temple there. Would the Muslims/Arabs ever agree to a Jewish Temple built there? It certainly doesn't look that way. But the UN could step in and that could be the confirmation of the covenant.