Valls is a city and municipality in the province of Tarragona in Catalonia in northeastern Spain. It is the capital of the county of Alt Camp. With a population of 24,570 inhabitants in 2014, it represents more than half of the population of the county. It is located in the area known as Camp de Tarragona next to the River Francolí, near Reus (Baix Camp) and Tarragona (Tarragonès), the capital of the province.
Valls is known for its culinary tradition, the feasting on calçots at what is known as a "calçotada". The calçots are a large type of sweet-flavoured spring onion, barbecued over a pit of flaming vines, and eaten piping hot with romesco sauce in gloved hands. The calçotada continues with a main course of meats and sausages grilled over the same glowing coals, and is washed down with locally produced wines. The calçots are only available between December and May and draw diners from as far away as Barcelona. The calçot is grown locally and has a "PGI" (Protected Geographical Indication) status in the same way that champagne does.
Another cultural tradition of Valls is the practice of building "castells" at festivals, pyramids of people sometimes as much as twelve individuals high, with each layer being supported by the people below. This human tower tradition originated in the Ball dels Valencians in Valls, first recorded in 1712, and later spread to nearby towns such as Vilafranca del Penedès and Tarragona, and more recently, to other parts of Catalonia.