Garden of Gethsemane
A study conducted by the National Research Council of Italy in 2012 found that several olive trees in the garden are amongst the oldest known to science. Dates of 1092, 1166 and 1198 AD were obtained by carbon dating from older parts of the trunks of three trees.
Church of All Nations
In 1920, during work on the foundations, a column was found two meters beneath the floor of the medieval crusader chapel. Fragments of a magnificent mosaic were also found.
Chapel of the Ascension
The main structure of the chapel is from the Crusader era; the octagonal drum and stone dome are Muslim additions. The exterior walls are decorated with arches and marble columns. The entrance is from the west, the interior of the chapel consists of a mihrab indicating the direction of Mecca in the south wall. On the floor, inside a stone frame, is a slab of stone called the "Ascension Rock".
The Western Wall
Until the Six Day War (in 1967, when Jerusalem was liberated), the Western Wall had no prayer plaza. There was just a narrow alleyway in the Muslim Mughrabi neighborhood - the Al-Buraq Alley, which was 28 meters long and only 3.6 meters wide. After the war and reunification of Jerusalem, the area was expanded. Today it is approximately 57 meters long and can accommodate up to 60,000 people. The Western Wall Plaza officially serves as a synagogue.