Note 283 — Chapter XVII · EVENTS FOLLOWING THE BATTLE OF CADESIYA—CAPTURE OF MEDAIN. A.H. XV., XVI. A.D. 636–7.
Reading edition
Geary, in the account of his recent journey, says it is fast falling into decay; but ‘the arch unequalled in the world’ is still nearly entire. Built of brick, it has a façade 450 long and 160 deep, and the niches and cornices and mouldings still remain. The vaulted arch is nearly 100 feet high, with a span of 80 feet.