Trajan’s Market is one of Rome’s most impressive ancient sites. Built during the reign of Emperor Trajan in the early 100s AD, it’s often called the world’s oldest shopping mall. The complex stood along the edge of Trajan’s Forum and may have even been used to relocate shops displaced by the forum’s construction.

The market itself was a remarkable feat of Roman architecture and engineering. Carved into the side of the Quirinal Hill, the multi-level structure held over 150 shops and offices. Here, Romans could buy food, wine, spices, and textiles, while administrative offices handled official business. Some of these dealt with the annonae, the state-sponsored grain distribution that fed poorer citizens.

What makes Trajan’s Market even more fascinating is its long life after the fall of the Roman Empire. During the Middle Ages, the complex didn’t vanish into ruin. Instead, its strong brick and concrete walls were repurposed as living quarters, fortifications, and even monasteries. This reuse not only kept the structure relevant for centuries, but also played a key role in its preservation. The fact that so much of the market still survives today is a testament to the durability and quality of Roman construction.

Today, Trajan’s Market is part museum, part archaeological site. Visitors can walk through ancient hallways that once buzzed with Roman shoppers, climb staircases nearly 2,000 years old, and get a glimpse of how the city evolved over the centuries.