Solomon's Stables was an underground vaulted space now used as a Muslim prayer hall at the bottom of stairs which lead down from the al-Aqsa Mosque, under the Temple Mount, to the base of the southern wall of the Temple Mount. Solomon's Stables are located under the southeastern corner of the Temple Mount, 12½ metres below the courtyard and feature twelve rows of pillars and arches. In December 1996 the Jerusalem Islamic Waq (an Islamic religious trust) converted the area into a prayer hall by adding lights and floor tiles, and renamed it the Marwani Prayer Hall.
The structure is most widely said to have been built by King Herod as part of his extension of the platform of the Temple Mount southward onto the Ophel. The Herodian engineers constructed the enormous platform as a series of vaulted arches in order to reduce pressure on the retaining walls. These vaults were originally storage areas of the Second Temple. A great deal of the original interior survives in the area of the Herodian staircases, although not in the area now renovated for use as a mosque. Visitors are rarely permitted to enter the areas with Herodian finishes.
The underground space for the most part remained empty except for the Crusaders period. The Crusaders converted it in 1099 into a stable for the cavalry. The rings for tethering horses can still be seen on some of the pillars. The structure has been called Solomon's Stables since Crusader times as a historical composite. 'Solomon's' refers to the First Temple built on the site, while the 'stables' refers to the functional usage of the space by the Crusaders in the time of Baldwin II (King of Jerusalem 1118-1131 CE).
References:Towering 52 meters above the sea, Bengtskär lighthouse is the tallest one in Scandinavia. The building started in in 1905 after the shipwreck of S/S Helsingfors and was completed in 1906. The lighthouse was designed by architect Florentin Granholm. On December a special petrol lantern, designed and built in Paris, was brought to Bengtskär and installed atop the tower.
German fleet bombarded Bengstkär in the First World War in 1914. Since the Gulf of Finland was heavily mined, it was not until 1919 that the surrounding seas were declared safe for shipping, that the light was lit again.
After the war the military value of Bengtskär increased as part of the defence system of independent Finland. In Second World War (1941) Soviet Union made a suprise attack to island. After a bloody battle, the small Finnish garrison emerged victorious. Intermittent repairs to the facility continued during the post-war period.