What is an ancient Greek and Roman exercise area often framed by a colonnade called?

The term for an ancient Greek and Roman exercise area often framed by a colonnade is "Palaestra." This space was specifically designed for physical training, athletic competitions, and other forms of exercise, which were important aspects of Greek and Roman culture. The colonnade surrounding these areas provided shelter and a social space for athletes and spectators, contributing to the communal experience of physical culture in ancient times.

In contrast, a "Hortus" refers to a garden or cultivated area, typically for growing plants and vegetables, which does not relate to physical exercise. "Natatio" denotes a swimming pool or a bathing area, not an exercise space. "Fauces" translates to a passage or entrance, usually referring to the entrance of a house or building rather than a dedicated area for exercise. Thus, the Palaestra stands out as the correct answer given its specific function and architectural characteristics in the context of ancient athletic life.