The Tetrapylon was erected during the renovations of Diocletian at the end of the third century. It is a square platform and each corner contains a grouping of four columns. Each column group supports a 150-ton cornice and contains a pedestal in its center that originally carried a statue. Out of sixteen columns, only one is original while the rest are from reconstruction work by the Syrian Directorate-General of Antiquities in 1963, using concrete. The original columns were brought from Egypt and carved out of pink granite.
Source: Palmyra - Wikipedia
⚠ Alert
On 20 January 2017, news emerged that the militants had destroyed the tetrapylon and part of the theater. Antiquities official stated that the Tetrapylon was badly damaged while the damage to the facade of the Roman theatre was less serious.
On 20 January 2017, news emerged that the militants had destroyed the tetrapylon and part of the theater. Antiquities official stated that the Tetrapylon was badly damaged while the damage to the facade of the Roman theatre was less serious.
Source: Palmyra - Wikipedia