Dilburnu Nature Park

Büyükada (Greek: Πρίγκηπος or Πρίγκιπος, rendered Prinkipos or Prinkipo), meaning "Big Island" in Turkish, is the largest of the Princes' Islands in the Sea of Marmara, near Istanbul, with an area of about 2 square miles (5 square kilometres). It is officially a neighbourhood in the Adalar (Islands) district of Istanbul Province, Turkey. During the first half of the 20th century, the island was popular with prosperous Greeks, Jews and Armenians as a refuge from the summer heat of Istanbul. Nowadays the island is almost as solidly Turkish as any suburb of mainland Istanbul. Historically, many residents of Büyükada were fishermen. However, by the late 2010s tourism to Büyükada swelled enormously as it became a favourite day-trip destination for visitors from greenery-starved Arab countries in particular. The surge in tourism was a major factor in bringing to an end the tradition of using phaetons as the only transport on the island in 2020. Visitors have been writing about Büyükada since the Turkish travel writer Evliya Çelebi recorded in his Seyahatname (Book of Travels) that there were 200 Greek houses on the island in 1640 and that it was ringed with dalyan fishermen. In 1884 the French historian Gustave Schlumberger published Les Iles des Princes, describing his visit to the archipelago. Ernest Mamboury recorded the sites of the island in his Les Iles des Princes, published in 1943 and Jak Deleon updated his work in 2003 in his Büyükada: A Guide to the Monuments. After leaving the island in 1933 Trotsky wrote an essay called Farewell tp Prinkipo. In 1997 Çelik Gülersoy, who had worked to restore some of the island's buildings, published Büyükada Dün (Büyükada Yesterday). In 2007 John Freely's The Princes' Islands exhaustively listed the historic mansions on the island. In 2009 the poet and translator Joachim Sartorius published an exquisite short travelogue called The Princes' Islands: Istanbul's Archipelago which mainly focused on Büyükada. The island is accessible by Şehir Hatları ferries from Eminönü and Kabataş on the European side of Istanbul and from Kadıköy and Bostancı on the Asian side of the city.

Museum of the Princes' Islands (Turkish: Adalar Müzesi) is a museum on Büyükada of Princes' Islands (Turkish: Adalar) in İstanbul Province, Turkey dedicated to the past of the Princes' Islands.

Büyükada Nature Park (Turkish: Büyükada Tabiat Parkı) is a nature park in Istanbul Province, Turkey. Büyükada (literally: Big Island) is the biggest of the Princes' Islands, a group of nine islands in the Sea of Marmara, in Adalar district southeast of Istanbul Province. An area east of the island was declared a nature park by the Ministry of Environment and Forest in 2011. It covers an area of about 4.45 ha (11.0 acres).

The Prinkipo Greek Orphanage (Turkish: Prinkipo Rum Yetimhanesi, also known as Prinkipo Palace or Büyükada Greek Orphanage) is a historic 20,000-square-meter wooden building on Büyükada, one of the nine Princes' Islands off the coast of Istanbul, Turkey, in the Sea of Marmara. It is considered the largest wooden building in Europe and second largest in the world. It served as an orphanage from 1903 to 1964.

The Princes' Islands (Turkish: Prens Adaları; the word "princes" is plural, because the name means "Islands of the Princes", Greek: Πριγκηπονήσια, Pringiponisia), officially just Adalar (English: Islands); alternatively the Princes' Archipelago; is an archipelago off the coast of Istanbul, Turkey, in the Sea of Marmara. The islands constitute the municipality and district of Adalar within Istanbul Province. With a total land area of 11 km2 (4.2 sq mi), it is the fifth smallest district in Istanbul, and with a permanent population of 16,690 (2022), it is by far the least populous district in Istanbul.

Hesed Le Avraam Synagogue (or Büyükada Synagogue) is a synagogue in Büyükada, Istanbul, Turkey. It is open for services only during summer months, like the other synagogues of the Princes' Islands.

Sedef Island, (Turkish: Sedef Adası, literally "Mother-of-Pearl Island"; Greek: Τερέβυνθος Terebinthos, and in ancient times also Androvitha or Andircuithos) is one of the nine islands consisting the Princes' Islands in the Sea of Marmara, near Istanbul, Turkey. Sedef Adası is officially a neighbourhood in the Adalar district of Istanbul. With an area of 0.157 km², it is one of the smallest islands of the archipelago. The island is mostly private property and the current pine forests were largely planted by its owner Şehsuvar Menemencioğlu, who purchased the island in 1956 and also played an important role in the imposition of a strict building code to make sure that the island's nature and environment will be protected. It is not allowed to build houses with more than 2 floors. The island's Greek name, Terebinthos, means "turpentine", which suggests a significant presence of the turpentine tree or terebinth in earlier times. In 857 AD Patriarch Ignatios of Constantinople was sent in exile to the island, where he was imprisoned for 10 years before being re-elected as Patriarch in 867 AD.

Bet Yaakov Synagogue (Hebrew: קהל קדוש בית יעקב) is a synagogue in Istanbul, Turkey that was built in 1878. It is located at the Asian side of the Bosphorus in the area called Kuzguncuk, just beside a Greek Orthodox church. The Jewish population of Kuzguncuk having moved away, it is kept alive by worshippers whose families originated there. Shabbat services on Saturday morning are held regularly.

İsmet İnönü House Museum is a house museum in Istanbul, Turkey. The house is in Heybeliada, the second largest island of the Princes' Islands in Istanbul. The house, then known as Mavromatis Mansion (from the Greek family of Mavromàtis), was built in the 19th century.In 1924, it was rented by the former prime minister İsmet Pasha, during the 3rd government of Turkey, in which he left his seat to Fethi Bey. However, in 1925, he returned to his former post. Beginning by 1925, the house was used by İsmet Pasha's family as a summer residence. In 1934, İsmet Pasha who has adopted the surname "İnönü" bought the house. The household furniture was donated by Atatürk, the president. In 1937, İsmet İnönü resigned from his post, and began living mostly in Heybeliada. The next year however, he was elected as the president, and began spending the vacations in other places, so the house lost its past liveliness. When ismet İnönü lost the 1950 general elections, the house once again returned to its former liveliness.İsmet İnönü died on 25 December 1973. The family kept the house. Finally, it was decided to transform the house into a house museum, keeping the original furniture. The garden of the house is used by the Museum of the Princes' Islands.

Heybeliada, or Heybeli Ada, is the second largest of the Princes' Islands in the Sea of Marmara, near Istanbul, Turkey. It is officially a neighbourhood in the municipality and district of Adalar, Istanbul Province, Turkey. Its population is 4,424 (2022). Its name, meaning 'with a saddlebag' in Turkish, in supposed reference to the valley between two hills. The island was known as Halki, Halkitis (Greek: Χαλκίτις) and Demonesos (Δημόνησος) in antiquity, the first two toponyms deriving from the Greek word halkos (Greek: χαλκός), meaning copper. The island was famous for its copper and copper ores in antiquity.In winter the island's population is only about 4,400, but in summer, the owners of summer houses return and the population swells to approximately 30,000.Launched in 2008, TCG Heybeliada, used by the Turkish Navy is named after the island.Until 2020, the only vehicles permitted on the island were ambulances, fire tenders, police cars etc; the only official form of transport was by horse-drawn phaeton. However, as tourism steadily increased animal-rights activists became increasingly concerned about the horses' welfare and so the phaetons were withdrawn in favour of electric vehicles.The island is served by Şehir Hatları ferries from Kabataş and Eminönü on the European side of İstanbul and Kadıköy and Bostanci on the Asian side.

Tavşan Adası ("Rabbit Island" in Turkish) (Greek: Neandros (Νέανδρος), the name of a mythological figure.) or Balıkçı Adası is the smallest of the Princes' Islands in the Sea of Marmara, to the southeast of Istanbul, Turkey. It is under the administration of the Adalar (literally Islands or Isles) district of Istanbul Province. The island has an area of 40 hectares (99 acres). On 10 April 2021, it was declared as a protected vulnerable marine area through a presidential decree.

The Halki seminary, formally the Theological School of Halki (Greek: Θεολογική Σχολή Χάλκης and Turkish: Ortodoks Ruhban Okulu), was founded on 1 October 1844 on the island of Halki (Turkish: Heybeliada), the second-largest of the Princes' Islands in the Sea of Marmara. It was the main school of theology of the Eastern Orthodox Church's Ecumenical Patriarchate of Constantinople until the Turkish parliament enacted a law banning private higher education institutions in 1971. The theological school is located at the top of the island's Hill of Hope, on the site of the Byzantine-era Monastery of the Holy Trinity. The premises of the school continue to be maintained by the monastery and are used to host conferences. It is possible to visit the island where it is located via boat in approximately one hour from the shore of Istanbul. An international campaign to reopen this theological school is ongoing.