Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Citadel, Ancient City and Fortress Buildings of Derbent' has mentioned 'Citadel' in the following places:
Occurrence Sentence Text Source
Derbent resembles a huge museum and has magnificent mountains and shore nearby, and therefore possesses much touristic potential, further increased by UNESCO's classification of the citadel, ancient city and fortress as a World Heritage Site in 2003; however, instability in the region has halted development.
The city has a well-preserved citadel (Narin-kala), enclosing an area of 4.5 hectares (11 acres), enclosed by strong walls.
The old Armenian Church, now used as a venue and Museum Russian Orthodox Church of the Intercession Memorial of the grieving mother Walls of the Citadel School number 15 Putin visiting an exhibition dedicated to the 2000th anniversary of Derbent in the State Historical Museum
Evidence was found of a fortified settlement in the region of the citadel during the 3rd century BCE and 4th century CE, which was confirmed by historical documents; Greek-Roman authors knew this settlement by the name of Albanian gate and meanwhile the ancient Armenian authors called it the Chol/Chor.
Two walls were constructed 300 to 400xc2xa0m apart, extending approximately 3.6xc2xa0km from the Caspian Sea up to the citadel situated on the mountain.
During the 6th century, wall construction, for both the city walls and citadel, was characterized by dry armor-clad brickwork (poke and spoons) made of big rectangular blocks with ragged stone on lime mortar in its internal backfilling.
The citadel is surrounded on three sides by steep slopes and has massive stone walls between 2.5xc2xa0m and 3.2xc2xa0m thick, over 700xc2xa0m in length and 10 to 15xc2xa0m in height.
Within the citadel, the ruins and archaeological remains of a number of buildings are found, including the Khanxe2x80x99s Palace, a bath, several underground water tanks, a 5th-century Christian church, and an 8th-century mosque, one of the earliest in the former Soviet Union.
Between the parallel defence walls, the city was built with the commercial sector close to the waterfront and the residential buildings near the citadel.
The property that is inscribed as the Citadel, Ancient City and Fortress Buildings of Derbent covers 37.658 ha and is surrounded by a 451.554-ha buffer zone.
The World Heritage property xe2x80x9cThe Citadel, Ancient City and Fortress Buildings of Derbentxe2x80x9d includes all necessary attributes demonstrating its Outstanding Universal Value, which are located inside the protected boundaries of its territory.
Identified threats to the site are landslides, particularly along the citadelxe2x80x99s steep slopes, uncontrolled development in the area near the sea, and the looting of stones by residents for personal use.
Although the defensive use of the citadel is no longer required, authenticity of form and design is evident in the old buildings between the fortress walls.
Moreover, the cityxe2x80x99s historic layout has been preserved with the relationship of the citadel, remaining north wall, and winding street pattern in the medieval town which continues to have a residential population.