In the Prefecture of Lassithi one can visit Medieval monuments, Byzantine churches and monasteries, a restored Venetian villa, the characteristic windmills of the Lassithi plateau and the small island of Spinalonga, which is known for its history of human suffering.
Spinalonga is a small island-fortress located at the northern entrance to Elounda bay, at a strategic point that secures control over the natural harbour of Elounda. An ancient fortification existed on the site of the fortress that can be seen today, for the protection of the port of the ancient town of Olous.
The church of Panagia Kera (the Virgin) is located on the road that connects Agios Nikolaos with Kritsa, 1 km before the village of Kritsa, and it is considered as one of the most remarkable Byzantine monuments on the island of Crete.
The Venetian villa Dei Mezzo, also known as the Seragio by local people, is a once three-storied tower located at the village of Etia, which was the fief of the noble Venetian Dei Mezzo family, in the uphill hinterland of Sitia.
The name Kazarma is derived from the Venetian Casa di Arma, which means barracksor armoury.Indeed, this was the barracks of the Venetian garrison, the army headquarters, of the fortified town of Sitia. The walls of Sitia, which reached as high uphill as the fortress, were built at the same time as the Kazarma, in the late Byzantine years.
The village of Voila, deserted today, takes up the northern and the western side of a steep hill on the eastern side of the plateau where the villages Ziros, Armeni and Handras are located. The steep hillside creates a natural fortification to the south-east, while at the northern and the western side, which overlooks the valley, the buildings have closed, fortress-like facades.