The Old Gate or the Roman Arch is not, as was assumed earlier, a Roman triumphal arch, but a monumental main entrance into the heart of the military headquarters of the late Roman empire Tarsatica, an ancient town on whose ruins medieval Rijeka rose. The people of Rijeka were right to trust their instincts and call it simply The Gate; the term Roman Arch became gradually more accepted from the time of Classicism when the documentation and the research of this monument began.
The profiled facade of the Arch has been preserved only in fragments, the other parts fell off a long time ago or have been taken away to be incorporated into the houses of medieval Rijeka. The Tarsatica Principia was the main camp, the supply base and the starting point of the Claustra Alpia Iuliarum, dozens of kilometres long intermittent defence walls, towers, guard stations, and larger fortifications positioned in key communication lines and elevated points, with the aim of stopping barbaric invasions towards Italy, the heart of the Roman Empire. http://www.visitrijeka.eu/What_To_See/Attractions/Principia_at_Tarsatica
Apart from Mlaka Park, Nikola Host’s Park is one of the oldest in Rijeka. It was created in the 19th century as a botanical garden close to Villa Androch when it was owned by Archduke Joseph, a great lover and connoisseur of the art of gardening. Located on the rocky terrain and stretching over several levels, the park, with its sculptures, fountains and exotic plants brought by the archduke from around the world, has assumed the appearance of an English garden. This appearance has partly faded away over time. The park was named after the Austrian botanist who participated in its creation. Today Villa Androch houses the State Archives. http://www.visitrijeka.eu/What_To_See/Parks_and_Promenades/Nikola_Host_park
The museum is headquartered in the former Governor's Palace, a historicist edifice and protected cultural monument. The Governor's Palace was constructed in 1896 and designed by Alajos Hauszmann, one of the foremost Hungarian architects during the time when Rijeka was under Hungarian rule.
Today, the palace houses the Maritime and History Museum of the Croatian Littoral, which was established in 1961 and comprises maritime, historical and cultural, ethnographic and archaeological departments. Some of the original items from the Governor's Palace, such as furniture and artisan craft-work, have been preserved and exhibited in salons on the first floor. The permanent exhibition of the museum provides an interactive and modern platform for showcasing the long, rich and tumultuous history and culture of living in the area of what is today Primorje-Gorski Kotar County from prehistoric times to the present day.
The Lipa Pamti Memorial Centre (Lipa Remembers), which is dedicated to the victims of the Lipa massacre that took place on 30 April 1944, is also a part of the museum. In addition to its memorial heritage, the Memorial Centre interprets the entire cultural, historical and ethnographical heritage of the Liburnian Karst region (Rupa, Pasjak, Šapjane and Brce) from prehistoric times to the present day. http://www.visitrijeka.eu/What_To_See/Museums_and_Collections/The_Maritime_and_History_Museum_of_the_Croatian_Littoral_Rijeka