The double-chaired voussoir barrel vault on the Gymnasium Calidarium, Salamis Cyprus
The colonnade of the Salamis Gymnasium was excavated in 1890 (Arthur, Munro & Tubbs, 1891) and interpreted as part of a Temple of Zeus. The area was recognized as a thermal complex following new excavations in 1925 [9], which therein uncovered partially three vaulted aulae. The building is a stratified palimpsest, reconstructed over the ruins of several earthquakes. First built during the rule of Augustus, archaeologists have dated one phase of the complex to the principate of Trajan 98-117 AD [25]. Others agree on dating the thermal buildings to the II century [9].