The "Roman pillar of victory" most commonly refers to Trajan's Column, a monumental structure in Rome completed in 113 AD to celebrate Emperor Trajan's victory in the Dacian Wars. Standing approximately 38 meters (125 feet) tall including its pedestal, the column is famous for its continuous spiral bas-relief frieze that winds around the shaft 23 times. This frieze contains over 2,600 figures across 155 scenes, depicting detailed narratives of Roman military campaigns, construction, and engineering. Inside the column, a spiral staircase of 185 steps leads to a viewing platform at the top, which was originally crowned by a statue of Trajan (replaced by a statue of Saint Peter in 1588). The base of the column served as a funerary chamber for the ashes of Trajan and his wife, Plotina. It remains one of the best-preserved examples of Roman triumphal architecture and served as the design template for subsequent victory columns throughout history, including the Column of Marcus Aurelius.