The Dome of the Rock is an Islamic shrine located on the Temple Mount in the Old City of Jerusalem. It was initially completed in 691 CE at the order of Umayyad Caliph Abd al-Malik during the Second Fitna, built on the site of the Roman temple of Jupiter Capitolinus, which had in turn been built on the site of the Second Jewish Temple, destroyed during the Roman Siege of Jerusalem in 70 CE. The original dome collapsed in 1015 and was rebuilt in 1022–23. The Dome of the Rock is in its core one of the oldest extant works of Islamic architecture.
Its architecture and mosaics were patterned after nearby Byzantine churches and palaces, although its outside appearance has been significantly changed in the Ottoman period and again in the modern period, notably with the addition of the gold-plated roof, in 1959–61 and again in 1993. The octagonal plan of the structure may also have been influenced by the Byzantine Church of the Seat of Mary (also known as Kathisma in Greek and al-Qadismu in Arabic) built between 451 and 458 on the road between Jerusalem and Bethlehem.
The site's great significance for Muslims derives from traditions connecting it to the creation of the world and to the belief that the Prophet Muhammad's Night Journey to heaven started from the rock at the center of the structure. The rock also bears great significance for Jews as the purported site of Abraham's attempted sacrifice of his son.
It has been called Jerusalem's most recognizable landmark, and it is a UNESCO World Heritage Site, along with two nearby Temple Mount structures, the Western Wall, and the 'Resurrection Rotunda' in the Church of the Holy Sepulchre.
Derbent is the southernmost city in Russia, occupying the narrow gateway between the Caspian Sea and the Caucasus Mountains connecting the Eurasian steppes to the north and the Iranian Plateau to the south. Derbent claims to be the oldest city in Russia with historical documentation dating to the 8th century BCE. Due to its strategic location, over the course of history, the city changed ownership many times, particularly among the Persian, Arab, Mongol, Timurid, Shirvan and Iranian kingdoms.
Derbent has archaeological structures over 5,000 years old. As a result of this geographic peculiarity, the city developed between two walls, stretching from the mountains to the sea. These fortifications were continuously employed for a millennium and a half, longer than any other extant fortress in the world.
A traditionally and historically Iranian city, the first intensive settlement in the Derbent area dates from the 8th century BC. The site was intermittently controlled by the Persian monarchs, starting from the 6th century BC. Until the 4th century AD, it was part of Caucasian Albania which was a satrap of the Achaemenid Persian Empire. In the 5th century Derbent functioned as a border fortress and the seat of Sassanid Persians. Because of its strategic position on the northern branch of the Silk Route, the fortress was contested by the Khazars in the course of the Khazar-Arab Wars. In 654, Derbent was captured by the Arabs.
The Sassanid fortress does not exist any more, as the famous Derbent fortress as it stands today was built from the 12th century onward. Derbent became a strong military outpost and harbour of the Sassanid empire. During the 5th and 6th centuries, Derbent also became an important center for spreading the Christian faith in the Caucasus.
The site continued to be of great strategic importance until the 19th century. Today the fortifications consist of two parallel defence walls and Naryn-Kala Citadel. The walls are 3.6km long, stretching from the sea up to the mountains. They were built from stone and had 73 defence towers. 9 out of the 14 original gates remain.
In Naryn-Kala Citadel most of the old buildings, including a palace and a church, are now in ruins. It also holds baths and one of the oldest mosques in the former USSR.
In 2003, UNESCO included the old part of Derbent with traditional buildings in the World Heritage List.