Located near the Plane Tree of Hippocrates, this temple, deidcated to Hercules, is dated to the 2nd century B.C. It is built upon a trapezoid

The church of Saint John the Baptist is an early Christian Baptistery built in the 5th or 6th century AD. The temple is located inside

The castle of Kos, better known as the castle of Nerantzia (castle of the sour orange tree), is the most important part of the fortifications