Petar Kružić staircase

Trsat Castle (Croatian: Gradina Trsat) is a castle in Trsat, Croatia. It is thought that the castle lies at the exact spot of an ancient Illyrian and Roman fortress. The Croatian noble Vuk Krsto Frankopan is buried in one of the churches. The Trsat castle was completely reconstructed and renovated in the 19th century when the mausoleum of the military commander Laval Nugent was built in its interior. The courtyard of the castle has now been turned into a restaurant and many tourists visit the place during the summer months.

The siege of Trsat (Croatian: Opsada Trsata) was a battle fought over possession of the town of Trsat (Latin: Tarsatica) in Liburnia, near the Croatian–Frankish border. The battle was fought in the autumn of 799 between the defending forces of Dalmatian Croatia under the leadership of Croatian duke Višeslav, and the invading Frankish army of the Carolingian Empire led by Eric of Friuli. The battle was a Croatian victory, and the Frankish commander Eric was killed during the siege.The Frankish invasion of Croatia, the destruction of Tarsatica, the coronation of Charlemagne as Holy Roman Emperor, and negotiations from 802–815 between the Franks and Byzantines led to a stalemate. Dalmatian Croatia consequently peacefully accepted a limited Frankish overlordship.

Dvorana Mladosti (English: Hall of Youth) is a sports hall in Rijeka, with sporting, cultural, business and entertainment events. The hall was built in Trsat in 1973. The size of the hall is 5,458 m2, and the surface of outer space is 10,486 m2. The main part of the hall consists of the main arena, two small halls for heating, a hall for judo, karate, weightlifting and billiards hall, and in the halls there are 4 dressing rooms, 2 fitness centres, office spaces and sports associations, press centre and catering facilities and retail spaces. The capacity of the hall is 2,960 seats and 1,000 standing places.

The Rječina (Italian: Eneo; German: Flaum), also known as the Fiumara, is a river in Croatia that flows into the Adriatic Sea at the city of Rijeka (Italian: Fiume). It is about 18 kilometers (11 mi) long, with an average width of 9 to 16 meters (30 to 52 ft). It springs from a cave at an elevation of 325 meters (1,066 ft) above sea level, below the high cliff of Kičej Hill (elevation 606 meters or 1,988 feet). Until 1870 the river's spring was below the next hill, Podjavorje, but it collapsed in an earthquake near the village of Klana. The most significant confluents are the Sušica, Lužac, Zala, Zahumčica, Golubinka, Ričinica, and Borovšćica, but they are dry for most of the year. In 1968 a dam Valići was built, creating Lake Valići to facilitate a hydroelectric power plant, HE Rijeka, but destroying the village of the same name in the process. The Rječina flows through a canyon for almost half of its length. In Rijeka, the river branches into two parts: Dead Channel (Mrtvi kanal, the old basin), and the new channel, which was created in the 19th century, when Dead Channel was used as a harbor. The best-known sight is the Gaspar Mill (Gašparov mlin) in Martinovo Selo, which was restored in the 1990s. Notable fauna are trout and river crabs.

The Rijeka Tunnel (Croatian: Riječki tunel), also called TunelRi, is a pedestrian tunnel located in the city centre of Rijeka, Croatia. The tunnel spans 350 metres (1,150 ft) from St. Vitus Cathedral to Dolac Primary School in Old Town. It was originally built from 1939 to 1942 by the Italian military in order to protect civilians from Allied aerial bombings during World War II. In several places along the tunnel, one can still see the original "Riservato all U.N.P.A." ("Reserved for the Anti-aircraft Corps") signs.After being closed for 75 years, the tunnel was remodeled and opened to the public in 2017, serving as a tourist attraction and public passage. The tunnel has no entrance fee and is open for public access every day from 9 a.m. to 5 p.m.

The Croatian National Theatre Ivan pl. Zajc in Rijeka (Croatian: Hrvatsko narodno kazalište Ivana pl. Zajca Rijeka. Italian: Teatro Nazionale Croato Ivan de Zajc), commonly referred to as HNK Zajc, is a theatre, opera and ballet house located in Rijeka.

The St. Vitus Cathedral (Croatian: Katedrala Svetog Vida) is a Roman Catholic cathedral in Rijeka, Croatia. In the Middle Ages, the Church of St. Vitus was a small and one-sided, Romanesque church dedicated to the patron saint and protector of Rijeka. It had a semi-circular apse behind the altar, and covered porch. With the arrival of the Jesuits in Rijeka, the cathedral as we see it today was founded in 1638. First, it became the Jesuits' church. When the town of Rijeka became the center of the diocese, and then in 1969 the center of the archbishopric and metropolit, the representative Jesuit's Church of St. Vitus became the Cathedral of Rijeka. The structure is a rotunda, which is unusual in this part of Europe, with elements of Baroque and Gothic, including fine baroque statuary inside. The cathedral was depicted on the reverse of the Croatian 100 kuna banknote, issued in 1993 and 2002.

The Roman Catholic Metropolitan Archdiocese of Rijeka (Croatian: Riječka nadbiskupija i Metropolita; Latin: Archidioecesis Metropolitae Fluminensis) is a Latin Catholic Metropolitan archdiocese in Croatia. Its episcopal seat is Rijeka Cathedral, dedicated to Saint Vitus (Croatian: Katedrala Sv. Vida), in the city of Rijeka. Other major churches include the former cathedral, dedicated to Saints Philip and James (Croatian: Crkva sv. Filipa i Jakova), located in nearby Novi Vinodolski, and a minor basilica, the Basilica of the Blessed Virgin (Croatian: Bazilika Blažene Djevice Marije), in the suburb of Trsat.

Palace Modello (Croatian: Palača Modello; Italian: Palazzo Modello) was built in 1885 in Rijeka, Croatia, on the place of the destroyed and demolished Adamichev (Croatian: Adamićev) theater. The palace was designed by the Viennese buro Fellner & Helmer led by Ferdinand Fellner and Herman Helmer. Building commenced in 1883 and completed in 1885. The palace was built for the Rijeka Bank and cashboxes of the Savings Banks. The Palace Modello has luxurious facade. It is rich in decorative elements in the style of the late renaissance and baroque. Decorative items were maden by the sculptor Ignazio Donegani.Modelo Palace is situated within sight of the Croatian National Theatre in honor Ivan Zajc, which was built in 1885 by the Buro Fellner & Helmer to replace the destroyed Adamichev theater.Attractive gala hall, which is now an audience of Italian Cultural Club (Italian: Comunità degli italiani di Fiume), decorated with magnificent stucco.The public library of Rijeka city is currently operating on the ground floor.

The 1995 Rijeka bombing occurred on 20 October 1995 in Rijeka, Croatia, when an Islamic terrorist organization attempted to destroy a police station by driving a car with a bomb into the wall of the building. Twenty-seven employees in the police station and two bystanders on the street were injured, although the only person killed was the attacker.

The Church of St. Nicholas (Serbo-Croatian: Crkva svetog Nikole / Црква светог Николе) is a Serbian Orthodox church in Rijeka, Croatia. The church is dedicated to Saint Nicholas. The building of the church was completed in 1790.

The Rijeka Synagogue (Croatian: Riječka sinagoga), also called the Great Synagogue of Rijeka, was a former Neolog Jewish synagogue, located in Rijeka, Croatia. Completed in 1903, the synagogue served as the main synagogue of the city until it was destroyed by Nazis in 1944.