Abd al-Malik, the Umayyad caliph, ordered construction of the Dome during the turbulent Second Fitna, a civil war that had fractured the early Islamic world. Work began around 685 CE and was completed by 691-692 CE, making it the earliest archaeologically-attested religious structure built by a Muslim ruler. The building's octagonal plan, with its double ambulatory encircling the exposed rock beneath the dome, drew on Byzantine and late Roman architectural traditions -- but its purpose was distinctly Islamic. The interior walls carry some of the oldest known Quranic inscriptions, proclaiming the oneness of God and the prophethood of Muhammad. These inscriptions, rendered in gold mosaic against deep blue, were theological arguments made permanent in glass and stone. The caliph was not merely building a shrine; he was declaring a faith's arrival on the world stage.

When Crusaders captured Jerusalem in 1099, they rechristened the Dome as the Templum Domini -- the Temple of the Lord -- and installed an altar on the sacred rock. The Knights Templar, who took their very name from this mount, used the neighboring Al-Aqsa mosque as their headquarters. For nearly a century, the crescent gave way to the cross. Then Saladin retook Jerusalem on October 2, 1187. He stripped the Crusader additions, replaced the cross atop the dome with a crescent, and placed a wooden screen around the rock below. The building's capacity to absorb and survive these reversals speaks to something beyond politics: each conqueror recognized the site's sanctity and chose transformation over destruction. Even the Crusaders, who massacred the city's inhabitants during their initial siege, left the structure itself intact.

The dome that defines Jerusalem's skyline has been rebuilt multiple times. The original wooden dome, covered in gold leaf, collapsed in the 1016 earthquake and was repaired. Ottoman Sultan Suleiman the Magnificent restored the exterior with the brilliant blue, green, and white ceramic tiles that still cover the building's upper walls. The aluminum-bronze alloy covering the dome today dates from a 1993 restoration funded by King Hussein of Jordan, who reportedly sold one of his houses in London to pay for the 80 kilograms of gold applied to the surface. The interior is no less extraordinary: 45,000 pieces of mosaic tile depicting scrolling vines, jewels, and crowns cover the inner walls, a dazzling program of decoration that has survived largely intact since the seventh century. No human or animal figures appear -- only vegetation and geometric patterns, alongside the inscriptions that wrap the inner and outer faces of the octagonal arcade.

Beneath the dome, the exposed bedrock rises roughly 1.5 meters above the floor. A small cave, known as the Well of Souls, is accessible by a staircase cut into the rock's southeast corner. Islamic tradition holds that the souls of the dead gather here to pray. A hole in the cave's ceiling may have served a drainage function when the Temple still stood above -- a mundane explanation for a feature wrapped in eschatology. The rock itself bears physical scars: Crusader-era marks where pieces were chipped off and sold as relics, and a section enclosed by a reliquary that once held a piece attributed to the Prophet's footprint. Whatever one believes about the rock's spiritual significance, its geological reality is straightforward: it is the summit of Mount Moriah, the highest point on the Temple Mount plateau, and human beings have been investing it with meaning for at least three thousand years.

From the air, the Temple Mount compound appears as a vast trapezoid of pale stone, with the golden dome centered in its northern half and the silver-domed Al-Aqsa mosque anchoring the south. The contrast between the gleaming dome and the tight-packed urban fabric of the Old City surrounding it is striking at any altitude. The Dome of the Rock sits roughly 740 meters above sea level, on a platform that Herod the Great expanded two thousand years ago using massive retaining walls -- the Western Wall being the most famous surviving section. Today the site remains one of the most politically sensitive places on Earth, with access controlled by the Jordanian-managed Waqf. Non-Muslims may visit during limited hours but are not permitted to pray. The building endures as it always has: simultaneously a work of art, a political lightning rod, and, for millions of believers, a portal between the human and the divine.