During the morning, we had the opportunity to explore by trolley the Three Cities of Malta and learn a little more of the interesting history of the first settlement of the Knights of Malta. After a wonderful lunch on board the Sea Cloud, we took off to explore the incredible UNESCO World Heritage Site of Ħaġar Qim, the great megalithic temple complex that dates to 3600 B.C., among the most ancient religious sites on Earth. It is described by the World Heritage Sites committee as "unique architectural masterpieces." Globigerina limestone was used in the construction of the temple, and because of this, the temple has suffered from severe weathering. In 2009, a protective tent was built over it.