The most important square in the city with many historic buildings to visit, such as the Archaeological Museum, Vouleftiko and Trianon.

It was built in 1707 and was the only entrance to the town by land, always closing at sundown. There used to be a moat in front of it. The gate was demolished in 1897 and was recently reconstructed according to a study of its original form.

A monumental bronze statue of Theodoros Kolokotronis on horseback (hero in the greek Independence War) dominates the park. It was created in 1894. A similar statue is found in Athens in front of the Old Parliament building.

Dating from late 18th-early 19th century it initially housed a Turkish school. The Prison of Palamidi was transferred here in 1926. Today it houses the restoration workshops and storage of the Archaeological Museum of Nafplio.

It dates from the 2nd Venetian Occupation (1687-1715) and was rebuilt in 1831 with the addition of the second floor. One of the largest houses in town with impressive interior decorations, it was the residence of Count Von Armansperg.