The oldest surviving building of the Namibian capital was originally built to house the German colonial troops in the late 19th century, later going on to become a museum for Namibia's struggle for independence, as well as a historic landmark in itself. The controversial Reiterdenkmal, an alleged symbol of German dominance in the region, has been relocated from its original place opposite the Christuskirche into the yard of Alte Feste for storage. The interior space is closed for public visits as of mid-2019; a few wartime exhibits are showcased out front.

Catello District is the most ancient part of the city. Perched on a hill at almost 100 metres above sea level, the Pisans built it in the XIII century, fortified it and made it their centre of power. Since then and until the end of the Second World War, Castello has been the heart of the administration and the house of the Sardinian aristocracy. Its ramparts enclose the best-known attractions of Cagliari, but even a simple walk in this area will transport you to its fascinating past.

This underground museum was voted the best in Europe in 2012, and is an essential visit for anyone interested in how the island's volcanic formations came to be. Centro de Interpretação do Vulcão dos Capelinhos uses multimedia to teach visitors about the formations as well as the island's history, notably the 1957-58 eruption.

St Peter Island is located off the coast of Sulcis Iglesiente. Despite its location being a bit far from Cagliari if you have enough time, do not miss the chance to visit this heavenly place, whose landscapes include stunning coastlines and beautiful terrain. It is perfect for both beach lovers and sports or trekking enthusiasts.