actually I also wonder why religions have holiest.places like Islam has the Masjid al-Haram (including the Kaaba), in Mecca; the Al-Masjid an-Nabawi, in Medina; and Al-Masjid al-Aqsa, in Jerusalem.
other religions also have of course.
all these are man made structures eg vatican. are they really holy?
why are religions worshipping buildings instead of God?