Trsat Castle represents a strategically embossed gazebo on a hill 138 meters above sea level that dominates Rijeka. As a parochial centre it was mentioned for the first time in 1288. Trsat Castle is one of the oldest fortifications on the Croatian Coast, where the characteristics of the early medieval town construction have been preserved. Today Trsat Castle, beside the Bazilisk souvenir shop and the Gradina coffee bar, is enriched with new facilities – gallery space where art exhibitions are held as well as open-air summer concerts and theatre performances as well as fashion shows and Literary evenings. Within Trsat Castle, at the Petra Zrinskog b.b. Address, is the Trsat Castle Info Point where any information about this building and the town of Rijeka can be found.

At the beginning of the 20th century, Korzo started to assume its modern-day outlines. The main promenade and meeting-point for Rijeka citizens as well as the construction area used in building the symbolic palaces demonstrate various styles including Classical, Historical, Secessional, and Modernist. Urban regulations appeared in the latter half of the 19th century, but these meant only an intensification of the rate of raising the seabed (with sand), and grand public constructions which appear to have very developed the seabed. Even then, at the turn of the century, the picture is of a littoral town straitened by its walls. Today, is hard to believe that until the sea-trench was filled-in and the town walls pulled down, this was only a gravel sea coast with a few wooden embankments and storehouses, a shipyard and a city log house which traded in cereals, fish and salt.

Gradski Toranj (City Tower), a symbol of Rijeka, is a good example of a typical round tower access-point, which lead into the fortified town. Today it dominates the central part of Korzo, although it was, during its time, overtopped by more recently constructed buildings. It was built in the Middle Ages, probably on the foundations of the Late Ancient, littoral town doors. Some baroque phases of its construction can be seen on the lower part of the front of the Tower, which are characterised by a richly decorated portal, an imperial coat of arms carved out of stone and a relief of the Austrian emperors Leopold and Charles VI. Rijeka paid them special respect due to the maritime orientation they introduced into the state policies of the Austrian court.

The Our Lady of Trsat Sanctuary, the oldest sanctuary dedicated to the Virgin Mary in Croatia, which is daily visited by numerous pilgrims both from Croatia and abroad. It is famous for its numerous concessions and for the pilgrimages by numerous believers throughout the year, and especially on the Assumption of Mary holiday. The Sanctuary includes the Church of Our Lady of Trsat, the Franciscan monastery, the thesaurus, the Chapel of oath gifts, Mary’s park and Pope John Paul II’s pastoral centre.

Built in 1885 as a city theatre according to the design of the specialized Vienna Helmer and Fellner workshop, which designed similar buildings throughout the Austro-Hungary of the time. Matsch, Kauffungen and Fritsch, and the Klimt brothers, permanent associates of the workshop, were charged with equipping the theatre, contributing to the pronounced central European atmosphere of the town. The exterior is adorned by figurative compositions of Music and Drama by Venetian sculptor Benvenutti. The opening of the theatre was marked by a performance of Verdi's Aida.

The Capuchin church of Our Lady of Lourdes was built from 1904 until 1929 in accordance with plans by engineers Giovanni Maria Curet and Cornelio Budinich. The modestly conceived neo-Gothic building ordered by the nuns of the Jesus Heart Institute was soon replaced by a monumentally conceived church in honour of the magical cure of the guardian of the capuchin monastery, father Bernardin Škrivanić in Lourdes. It was built as a double neo-Gothic basilica with rich polychrome art carried out in the Lombard fashion. In the beginning, in 1907, the church of the Our Lady of Sorrows was built followed by the 70 metre-long church of Our Lady of Lourdes from 1914 until 1929. The sanctuary was decorated with polychrome stained glasses, and the church’s front facades and altar plaster were decorated by the Venetian sculptor Urbano Bottasso and Rijeka carver, Antonio Marietti. Frescoes in the interior were painted by the famous Rijeka painter, Romolo Venucci. Although the 75 metre-high lighthouse was never built on the church, it became an unavoidable sign for all passengers.

Construction of the Governor’s Palace began in 1892 during the period of Governor Lajos Batthyány's rule and based on the design of one of the leading Hungarian architects of the time, Alajos Hauszmann who had already proved himself on the project of the King's Palace and the Parliament building in Budapest. On a surface area of 12 000 m² a simple and monumental corpus of the detached neo-Renaissance palace was built based on models of the famous Palladi's works, a French park with two fountains and balustrades made of wrought iron and two-leaf doors with sentry boxes.Today, the Maritime and Historical Museum of the Croatian Littoral can be found at the palace founded in 1961 which contains a maritime, cultural and historical, ethnographical and archaeological department. Part of the exhibits of original pieces from the Governor’s palace are presented in lounges, including the furniture and objects of the art crafts belonging to the periods from the Renaissance to Historicism as well as a collection of portraits of the most notable Rijeka citizens.

The Old Gateway or Roman Arch is not a Roman arch as was once presumed, but was in fact the main entrance to the central compound of the Roman Tarsatica in late antiquity, an ancient town on whose ruins medieval Rijeka was built. The instincts of Rijeka’s populace in calling this ancient monument simply the Gateway have been proved right, the epithet Roman Arch being gradually accepted since Classicism, when it started to be documented and researched. This Principia was the main centre, supply base and the starting point of the Alpine enclosure, composed of scores of kilometers of protective walls, turrets, guard-houses and larger fortifications usually on high ground which were able to signal to one another, all built with the aim of blocking barbarian incursions towards Italy, the centre of the Roman Empire.