Cave of the Patriarchs (Cave of Machpelah):
The Cave of the Patriarchs (called the Ibrahimi Mosque or Sanctuary of Abraham to Muslims) is a sacred site to Jews, Christians and Muslims alike.[5] It is the second holiest site to Jews (second to the Temple Mount). This site is believed to be the burial spot of Adam and Eve, Abraham and Sarah, Isaac and Rebekah, and Jacob and Leah (the patriarchs and matriarchs in the Jewish tradition). Some Jews believe that Esau's head is here and some Muslims also believe that it is home to the tomb of Joseph. According to Genesis, Abraham purchased the burial area for four hundred shekels approximately 3700 years ago. The structure was built by Herod the Great though during the Second Temple Period as a place for prayer (since it was around such sacred burials). The Muslims dominated the area around seven hundred years ago and Jews were at that time not permitted to go beyond the seventh step of the structure. However, Jews were allowed reentry finally in 1967 although with restrictions that still stand today. This is because it is still administered by the Waqf. The structure consists of three rooms: Ohel Avraham, Ohel Yitzhak, and Ohel Ya'akov. Jews are only permitted to enter Ohel Yitzhak ten days in the year.[7]
(picture taken from www.bibleplaces.com)