The Temple of Jupiter—once wrongly credited to Helios—lay at the western end of the Great Court, raised another on a platform reached by a wide staircase. Under the Byzantines, it was also known as the "Trilithon" from the three massive stones in its foundation and, when taken together with the forecourt and Great Court, it is also known as the Great Temple. The Temple of Jupiter proper was circled by a peristyle of 54 unfluted Corinthian columns: 10 in front and back and 19 along each side. The temple was ruined by earthquakes, destroyed and pillaged for stone under Theodosius, and 8 columns were taken to Constantinople (Istanbul) under Justinian for incorporation into the Hagia Sophia. Three fell during the late 18th century. 6 columns, however, remain standing along its south side with their entablature. Their capitals remain nearly perfect on the south side, while the Beqaa's winter winds have worn the northern faces almost bare. The architrave and frieze blocks weigh up to each, and one corner block over , all of them raised to a height of above the ground. Individual Roman cranes were not capable of lifting stones this heavy. They may have simply been rolled into position along temporary earthen banks from the quarry or multiple cranes may have been used in combination. They may also have alternated sides a little at a time, filling in supports underneath each time. The Julio-Claudian emperors enriched its sanctuary in turn. In the mid-1st century, Nero built the tower-altar opposite the temple. In the early 2nd century, Trajan added the temple's forecourt, with porticos of pink granite shipped from Aswan at the southern end of Egypt.