Tarraco is the ancient Roman name for the city now known as Tarragona, located in the Catalonia region of Spain. The city was founded by the Romans in the 3rd century BC and served as a major administrative center and military stronghold for the Roman Empire in Spain.

The city of Tarraco was a major port and center of commerce for the Roman Empire, and its strategic location made it an important center of military and political power. The city was also a cultural and artistic hub, with a thriving theater and arts scene.

Today, the city of Tarragona is home to many well-preserved ancient Roman ruins, including a large amphitheater, a circus, a necropolis, and a forum. The ancient walls of the city still stand, as do many Romanesque and Gothic buildings from later periods.

In 2000, the city of Tarragona was declared a UNESCO World Heritage Site in recognition of its rich history and cultural significance. Today, visitors to the city can explore its ancient ruins and architecture, as well as its vibrant culture and modern amenities. The city is also known for its beautiful beaches, vibrant nightlife, and excellent cuisine, making it a popular tourist destination for visitors to Spain.