St. Henry's Cathedral

Kaivohuone (also abbreviated as Kaivo) is a restaurant in Helsinki, Finland. It is located in the middle of Kaivopuisto Park on the Iso Puistotie street, about one and a half kilometers south of the Market Square. The restaurant features a large outdoor terrace, and in the summer, popular nightclubs performing by top artists are organized in the restaurant, which are especially popular on Wednesdays and Saturdays.

Helsinki University Observatory housed the Department of Astronomy at the University of Helsinki, south Finland until end of 2009. It is now an astronomy-themed visitor centre and museum.

Tähtitorninvuori or Tähtitorninmäki (Swedish:Observatorieberget/Observatoriebacken) is a rocky hill about 30 meters high in Ullanlinna, Helsinki, next to the South Harbor. The hill is mostly a park, but there are also a few public buildings.At the top of the hill, at the southern end of Unioninkatu, is the Helsinki University Observatory, which was completed in 1834 and is named after the observatory towers. Today, the Observatory serves as a public center for astronomy and is not used for research purposes. Astronomical observations there can no longer be made because the city lights completely obscure the dim objects in the starry sky. Researchers can make observations e.g. In Metsähovi in Kirkkonummi or abroad.In the past, the observatory was clearly visible as the end point of the long and straight Unioninkatu, up to Kallio Church, but today the trees growing on both sides of Copernicus Road almost obscure it from view.

The Italian ambassador in Helsinki is the official representative of the Government in Rome to the Government of Finland.

Kaivopuisto (Swedish: Brunnsparken), nicknamed Kaivari in Finnish or Brunsan in Swedish, is one of the oldest and best known parks in central Helsinki, Finland, and also a neighbourhood of about 500 inhabitants where the park is located.

The Ursa Observatory is an astronomical observatory in Helsinki, Finland.

The Olympia Terminal (Finnish: Olympiaterminaali, Swedish: Olympiaterminalen) is a dock in the South Harbour of Helsinki, Finland. It was designed by the Hytönen-Luukkonen architects bureau and opened for the 1952 Summer Olympics. Today, the terminal has a regular connection to Stockholm, acting as Silja Line's Helsinki terminal. Over 1.5 million passengers travel through the Olympia Terminal annually. A currency exchange point, an ATM and a café are present in the building. Silja Line’s MS Silja Serenade and MS Silja Symphony operate daily to Stockholm’s Värtahamnen, departing at 17:00.

The villa Kleineh (also known in English as House of Adlercreutz) is an old villa in Helsinki's Kaivopuisto, Finland. Nowadays it is the oldest villa in Kaivopuisto and the official residence of the ambassador of the Netherlands to Finland.The building is located at Itäinen Puistotie 7 and was built for the Ullanlinna bath house guests. The lot was handed over in 1839 and the building is assumed to have been finished during the next year. It is unsure who the architect is, but some sources mention Carl Ludvig Engel and his student Jean Wik. It has also been argued that C.A. Edelfelt was the architect, but at the time the building was being finished, Edelfelt hadn't started his career yet. The "Bath- and wellhouse" corporation by Viktor Hartwall, A.W. Astenius and J.A. Decker took the initiative of building the house.: 60  They let it to guests of the bathhouses during summers. In 1857 restaurateur Louis Kleineh bought the house for personal use and it remained family property until 1928.: 60–63  From that time on the house is being called "Villa Kleineh". The architecture of the house was representative of the Empire style. This was further expanded by Jean Wik in 1858 and Theodor Decker in 1872. More modifications have been made during the years 1882, 1889 and 1914. In 1928 the director of Nobel Standard, Leopold Lerche, bought the villa. During the next year he had Birger Bederley make more and larger modifications than ever before. During that time Villa Kleineh got its classicist look that it now still has.: 67–69 Lerche died in 1929 and in 1954 the family of his widow's children inherited the villa. Their family name was Adlercreutz and for that reason the villa got its second name "Villa Adlercreutz". After the Second World War the villa was in use of the British delegation of the Allied Commission. The villa and its garden are protected from 1965 on. After the passing away in 1989 of the last resident of the villa, Henrik Adlercreutz, the building became property of a developer and it remained mostly empty. The later owner Merita-bank let the villa in 1998 as a residence to the ambassador of the Netherlands. Two years later it was sold to the Netherlands state. The ambassador is a resident of the villa since November 1999.: 71 In the movie "Kaivopuiston kaunis Regina" (1941) the house functions as the summer house of monarch Popoff. According to local ghost traditions, the ghost of Kleineh's second wife, Maria Kleineh (maiden name Maria Kristina Forsell) still roams through Villa Kleineh and Kaivopuisto.

The Cygnaeus Gallery (Finnish: Cygnaeuksen galleria, Swedish: Cygnaei galleri) is an art gallery in Helsinki. The art gallery was founded by the professor of aesthetics Fredrik Cygnaeus. It was built as a villa in 1869–1870 to designs by architect J.F.W. Mieritz. Cygnaeus donated the gallery to the Finnish nation in his testament. It opened to the public in 1882, and is today owned by the Finnish Heritage Agency. It has been claimed to be the oldest still operating art museum in Finland. The gallery contains mainly Finnish art from the 19th century, c. 200 works in total. Among artists represented are Albert Edelfelt, the Von Wright brothers, Fanny Churberg and Helene Schjerfbeck.Apart from the permanent collections the museum also hosts temporary exhibitions and is used, among other things, as concert venue.In 2014 it was closed down for the time being for lack of funding by the Heritage Agency.

The Mannerheim Museum is located in Helsinki, Finland. It is dedicated to preserving and displaying items related to the life and times of Marshal C. G. E. Mannerheim, a Finnish statesman and military officer. The Mannerheim Museum is located on top of a hill in a prestigious residential area next to the Kaivopuisto park in Helsinki. The building was the home of Mannerheim from 1924 to 1951. With the exception of a few rooms that have been converted for exhibition purposes, his home has been preserved in its original state.

The Helsinki Surgical Hospital (Finnish: Kirurginen sairaala, Swedish: Kirurgiska sjukhuset), often referred to as Kirurgi (Swedish: Kirurgen) or simply Kirra, is a hospital located in Helsinki, Finland, in the district of Ullanlinna along the street Kasarmikatu near the Tähtitorninmäki park. The hospital was built in 1888 and represents neoclassical architecture typical of the late 19th century. The hospital is part of the Helsinki University Central Hospital. Because of a great demand for a new hospital, the city of Helsinki donated the lot for construction of the hospital free of charge. The first designs for a new hospital were made by Hampus Dalström in the middle 1870s. However, the doctors were not satisfied with them, so the Senate of Finland held an architectural contest in 1877, which was won by the Swiss Sigismund Rangier. The designs of Ludwig Bohnstedt and Ernst Jacobsson were also accepted. The construction board did not think any of the designs was fit for construction on its own, so the board started combining elements from various designs led by Hampus Dalström and Frans Sjöström. After Sjöström's death, Helge Rancken took over from him, and the final designs in Sjöström's name were finished in 1885. Construction of the hospital started in 1886 and was completed in 1888.The hospital has later been expanded with additional buildings, for example an emergency duty department built in 1973, designed by Eija and Olli Saijonmaa. It was equipped with a helicopter landing pad.Emergency duty activity in the hospital stopped in 1994 and the helicopter landing pad was dismantled during renovation in 2010. Emergency duty activity in the hospital was reinstarted in 2015, when the policlinic for ear, nose and throat diseases moved there from the Helsinki Eye and Ear Hospital. Currently the hospital hosts the Ear Clinic except for the Phoniatrics Clinic, which remains at the Helsinki Eye and Ear Hospital in the Meilahti Hospital. The name Kirurgi (Swedish: Kirurgen) is also used for the terminus of the Helsinki tram line 10 located near the hospital. In April 2020 HUCS concentrated treatment of the COVID-19 pandemic to the Surgical Hospital and opened a new inpatient wing for COVID-19 patients. The hospital also hosted an intensive care unit for the treatment of COVID-19 patients. The COVID-19 care department was closed down in May 2021 as the number of patients decreased. Discussion about reopening the COVID-19 care departments started in December 2021 as the number of patients started increasing again.

The Palace Hotel is an historic modernist hotel in Helsinki, opened in 1952, the year of the Helsinki Olympic Games. The building was designed by architects Viljo Revell and Keijo Petäjä, and was constructed during 1949–1952. In addition to the Palace Hotel and related restaurants, the building hosted also the main offices of the Confederation of Finnish Industry and Employers. The interiors of the building were furnished by various renowned Finnish interior designers, such as Olli Borg, Antti Nurmesniemi and Olavi Hänninen.The hotel building has been included in the selection of Finnish masterpieces of modernism in architecture by the Docomomo International organization.