Trajan's Forum in Rome, central area, columns which historically formed the Basilica Ulpia, modern Italian Altare della Patria in background right.

Trajan's Forum (Latin: Forum Traiani) was the last of the Imperial fora to be constructed in ancient Rome. The famous architect Apollodorus of Damascus oversaw its construction.
This forum was built on the order of the emperor Trajan with the spoils of war from the conquest of Dacia, which ended in 106. The Fasti Ostienses state that the Forum was inaugurated in 112, while Trajan's Column was erected and then inaugurated in 113. In modern times only a section of the markets and the column of Trajan remain. A number of columns which historically formed the Basilica Ulpia remained on site, and have been re-erected.

more on https://en.wikipedia.org/wiki/Trajan's_Forum