The capital city of Malta, despite its incredibly compact size is hailed to be one of the most concentrated historic areas the world over by UNESCO. The fantastic 16th century architecture and historical fortifications found within the borders of Valletta are proof of this. Explorations of the narrow back streets and bustling Grand Harbour will be time well spent. If it’s your first trip to Malta, start with a visit to the Malta Experience. It is the perfect half-hour introduction to not only the city, but Malta as a whole. It gives you an overview of the history and culture that is yet to be experienced.
Dig a little deeper
You would be forgiven for bypassing St John’s Co-Cathedral. The exterior is vastly unremarkable and will blend in easily with the surrounding buildings. 
Keep your eyes peeled as the interior more than makes up for it. Upon entering, follow the audio guide provided. This will dictate the best route to follow. Although not particularly well known, the grandeur within renders it one of the most impressive cathedrals in Europe. The museum is an added bonus.
Visit Parliament
The Grand Masters Palace, the current office of the Maltese President and Houses of Parliament is another note-worthy site, although access is limited. When parliament is not in session, visitors can explore the Palace and the State Rooms which contain an impressive collection of armour. It hosts one of the largest collections in the world, as well as intricate tapestries. Grand and beautiful it’s a winner for anyone with an appreciation for architecture. The National Library is found just next door. Access is limited and you will need photo ID to enter but it’s worth popping into to this old, large building complete with old and authentic rickety, wooden cabinets.
Don’t miss Casa Rocca Piccola
The last absolute must-see of Valletta’s buildings is Casa Rocca Piccola. It was built in the late 16th century for Admiral and Knight of Malta, Don Pietro La Rocca. Some of the country’s most famous families called it home. It’s now privately owned and visitors can tour the 50 perfect rooms. Learn about the history, and visit the series of underground tunnels too. Some of which were greatly used during World War II. Casa Rocca Piccola is filled with fantastic treasures and a beauty that shows it has really stood the test of time.
The past and the remaining buildings are a huge part of Valletta but this isn’t all it has to offer. Intersperse your historical visits with its other charms. Visit the vast array of fantastic restaurants, lose yourself in the unique little shops and boutiques, and just generally soak up the charm during your time here.
It looks amazing at night as well. Visited it during the last festival of the year in october, it was full of people and entertainment. I have really enjoyed it.