Israel has nine public universities that are subsidized by the state and 49 private colleges. The Hebrew University of Jerusalem, Israel's second-oldest university after the Technion, houses the National Library of Israel, the world's largest repository of Judaica and Hebraica. The Technion, the Hebrew University, and the Weizmann Institute consistently ranked among world's 100 top universities by the prestigious ARWU academic ranking. The Hebrew University of Jerusalem and Tel Aviv University are ranked among the world's top 100 universities by Times Higher Education magazine. Other major universities in the country include Bar-Ilan University, the University of Haifa, The Open University, and Ben-Gurion University of the Negev. Ariel University, in the West Bank, is the newest university institution, upgraded from college status, and the first in over thirty years. Israel's seven research universities (excluding the Open University) are consistently ranked among top 500 in the world.