Valletta is Malta 's capital city, so it is just fitting to start a tour in Malta 's most important city. Valletta was built in 1565 and today is the administrative and commercial heart of Malta . Through the streets of Valletta, one will see holdovers from Malta's ancient past, such as baroque churches and palaces. Highlights of the Valletta tour include the Barracca Gardens , with a breathtaking panorama of the Grand Harbor ; St. John's Cathedral which retains much of its splendor from medieval ages; the Cathedral museum; the Grandmaster's Palace ; and the Malta Experience , an audiovisual presentation of Malta 's history through the ages.