Valletta's Upper Barrakka Gardens are a public garden. They provide a panoramic view of the Grand Harbor, together with the Lower Barrakka Gardens in the same city. The gardens are located on the upper terrace of the 1560s-built St. Peter & Paul Bastion. The Saluting Battery is located on the bastion's bottom deck. The tiered arches in the garden were erected in 1661 by the Italian knight Fra Flaminio Balbiani. They were originally roofed, but the ceiling was destroyed during the Priests' Rising in 1775.

The National Museum of Archaeology is Maltese in Valletta, and it houses prehistoric, Phoenician, and numismatic items. Heritage Malta manages it. The museum's bottom floor displays ancient items from the Maltese islands, ranging from the Gar Dalam period (5200 BC), the first manifestation of population on the island, through the Tarxien era (2500 BC). As a result, the museum intends to open the first-floor galleries and expand the display to include archaeological objects from the Roman and Medieval periods as soon as possible.

St John's Co-Cathedral is a Roman Catholic co-cathedral honoring Saint John the Baptist. It was erected as the Conventual Church of Saint John by the Order of St. John between 1572 and 1577, after being commissioned by Grand Master Jean de la Cassière. The church was created by Maltese architect Girolamo Cassar, who also designed numerous other notable structures in Valletta. Mattia Preti and other painters redecorated its interior in the Baroque style in the 17th century. The interior of the church is regarded as one of Europe's greatest examples of high Baroque architecture.

The Grandmaster's Palace, also known as the Magisterial Palace, was erected during the 16th and 18th centuries as the residence of the Grand Master of the Order of St. John, who controlled Malta from 1530 until 1798. The President of Malta's office is now housed at the Palace. From 1921 to 2015, it also served as the Maltese Parliament's seat. Parts of the palace, especially the Palace State Rooms and the Palace Armoury, are available to the public as a Heritage Malta museum.

The Lower Barakka Gardens and the Upper Barakka Gardens are twinned. It offers a view of the Grand Harbour and the breakwater, as well as the Monument to Sir Alexander Ball, a significant landmark in the shape of a neoclassical temple in the garden's center. Furthermore, the terrace area has historical plaques commemorating, among other things, the 1956 Hungarian revolution, the Prague spring, Giuseppe Garibaldi, and the 50th anniversary of the European Union.