Currently, there is friction over a building site where tradition affirms as the site of the last supper. The evidence?
"In chapter two of the Acts of Apostles, Peter describes the place, mentioning that it is near David’s Tomb"
It's on the paucity of this evidence alone that has justified belief about this site for centuries.

The site now has Jews and Christians at odds.
“The
construction work going on at the site raises the suspicion that
someone is trying to Judaize a Catholic site and prevent freedom of
religious expression.”
What about Jews freedom of religion? It's fine and dandy in the mind of the Christian for the Christian, but a Jew?
No. It's a good thing there is a modern court system in Israel, otherwise, there would have been rioting in the streets.
Incidentally,
I wonder about the mind of Christian Zionist in this
situation. Israel for the Jews - until you mess with our perceived
religious priorities.
For a secularist and atheist like me, this
is just one more unnecessary division between people, made necessary by religious
priorities - all of which, utterly false.
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Source)