Aynalıkavak Pavilion

Maalem Synagogue is a synagogue located on the slopes overlooking the Golden Horn near the Jewish old age home in the Hasköy district of Istanbul, Turkey. It is the only remaining open synagogue in an area that once had many Jewish residents. The synagogue is open for visits only during weekdays. Shabbat services are held regularly.

The Karaite Synagogue (Hebrew: בית הכנסת הקראי באיסטנבול; Turkish: Karahim Sinagogu, Karaim Sinagogu, Karayim Sinagogu) is a Kenesa in the Hasköy district of Beyoğlu, Istanbul, Turkey. The building's date of construction is unclear; it may date to Byzantine times. The building was in ruins in the sixteenth century; it was repaired in 1536, burned in 1729, rebuilt, burned again in 1774, rebuilt between 1776 and 1780, restored in 1842, and burned again in 1918. The Karaite congregation of the town also has their own cemetery. The trust behind these Institutions is called Hasköy Türk Karaim Musevi Sinagogu Vakfı. Today the Kenesa functions only at the Karaite Pesach. Contact to the congregation can be built via the Turkish Chief Rabbinate or the Quincentennial Foundation Museum of Turkish Jews.

Handan Agha Mosque is a mosque near the Golden Horn in the Hasköy neighborhood of Beyoğlu, Istanbul, Turkey. It is also known as the Kuşkonmaz or "Birds Don't Perch" Mosque. One of Sultan Mehmed II's aghas, Handan Agha, had it built in the 15th century. The interior is decorated with İznik tiles from the 16th and 17th centuries, with some maiolica tiles from the 19th century. The basement of the mosque was formerly a boathouse, until the coastline was filled for land reclamation. The mosque was repaired in the 18th and 19th centuries, and the 1960s.

Mayor Synagogue is a former synagogue in the Hasköy district of Beyoğlu, Istanbul, Turkey.

Hasköy is a district on the northern bank of the Golden Horn in Beyoğlu, Istanbul, Turkey. It includes the neighborhoods of Keçeci Piri, Piri Paşa, and Halıcıoğlu, and parts of Camiikebir and Sütlüce. Hasköy means "imperial village" in Turkish, a reference to the pavilions and gardens belonging to the Ottoman sultan and his court once found here. According to other sources, the name is a corruption of Aya Paraskevi, Αγία Παρασκευή, the local Greek Orthodox church.In the late fifteenth century, Jews expelled from Spain and Portugal took refuge in the Ottoman Empire and many of them settled in Hasköy. In the late sixteenth century, the Jewish community of Eminönü was displaced by the construction of the New Mosque (Yeni Cami) and also moved to Hasköy. The neighborhood also had many Armenian and Greek residents in the past. It was known to Armenian speakers as Khasgiugh (Խասգիւղ), "khas" reflecting the older pronunciation of the Turkish word "has" and "giugh" being the Armenian word for village. Hasköy was a trading area with many dockyards and warehouses. The first Armenian theatre company in Istanbul was founded here in 1858.Local attractions include the Aynalıkavak Palace and the Rahmi M. Koç Museum. At one time there were several active synagogues in Hasköy including the Maalem Synagogue, Hesed Le Avraam Synagogue, the Karaite Synagogue and the former Mayor Synagogue. The Greek Orthodox Church of Aya Paraskevi (Saint Paraskevi) still functions and has been provided by the Ecumenical Patriarchate to the local Romanian Orthodox community. The Surp Stepanos (Saint Stephen) Armenian Church was established by Armenian immigrants from Eğin. From 1852 to sometime in the 20th century, the Halıcıoğlu Armenian Protestant Church also offered services; while from 1889 to 1975, there was also a chapel attached to Hasköy's Kalfayan Orphanage, the Surp Asdvadzadzin (Saint Mary) Armenian Church.Local mosques include the Handan Agha Mosque, and Kırmızı Minare Mosque. Local cemeteries include the Hasköy Muslim Cemetery, the Beyoğlu Greek Cemetery, the Beyoğlu Jewish Cemetery, the Turkish Karaite Congregation Cemetery, and the Hasköy Armenian Cemetery. The Jewish Cemetery contains the grave of Abraham Kamondo, a banker to the Ottoman court. On April 26, 2011, the cemetery was desecrated by vandals who smashed several headstones in what appears to have been an act of anti-Semitism.

Kırmızı Minare Mosque (Red Minaret Mosque) is a mosque in the Hasköy neighborhood of Beyoğlu, Istanbul, Turkey. It was probably built in 1591 by Kiremitçi Ahmet Agha and so is also known as the Kiremitçi Ahmet Agha Mosque. It received the name "Red Minaret" because of its red brick minaret. The building was restored in 1889 and 1994.

Taşkızak Naval Shipyard (Turkish: Askeri Taşkızak Tersanesi) was a shipyard of the Turkish Navy located at the Golden Horn in Istanbul, Turkey. Established in 1455, a big part of the shipyard was relocated to the Istanbul Naval Shipyard in Tuzla, Istanbul in 2000.

Bulgarian St Stephen Church (Bulgarian: Църква "Свети Стефан"; Turkish: Sveti Stefan Kilisesi), also known as the Bulgarian Iron Church, is a Bulgarian Orthodox church in Balat, Istanbul, Turkey. It is famous for being made of prefabricated cast iron elements in the neo-Byzantine style. The church belongs to the Bulgarian minority in the city.

USS Thornback (SS-418), a Tench-class submarine, was the only ship of the United States Navy to be named for the thornback, a slender member of the shark family with a long pointed snout and a sharp spine at the end of each dorsal fin, native to northern Atlantic waters ranging from the temperate to the Arctic. Her keel was laid down on 5 April 1944 by the Portsmouth Navy Yard. She was launched on 7 July 1944 sponsored by Mrs. Peter K. Fischler, and commissioned on 13 October 1944 with Commander Ernest P. Abrahamson in command.

Yanbol Synagogue is a synagogue in Istanbul, built by Sephardi Jews who moved from the Bulgarian town of Yambol to Istanbul during the 15th century. The synagogue is also known as the Bulgarian Synagogue owing to the origin of the community. The synagogue was constructed in the 18th Century. However, it underwent repairs during the end of the 19th century thus the structure today is not the original. Today, the synagogue is only open for Shabbat services due to a decrease in the Jewish community in the area.

The Cathedral Church of St. George (Greek: Καθεδρικός ναός του Αγίου Γεωργίου; Turkish: Aya Yorgi Kilisesi) is the principal Eastern Orthodox cathedral located in Istanbul, the largest city in Turkey and, as Constantinople, capital of the Byzantine Empire until 1453, and of the Ottoman Empire until 1922. Since about 1600, it has been the seat of the Ecumenical Patriarchate of Constantinople whose leader is regarded as the primus inter pares (first among equals) in the Eastern Orthodox Church, and as the spiritual leader of 300 million Orthodox Christians worldwide.The church, dedicated to the Christian martyr Saint George, is the site of numerous important services, and is where the patriarch will consecrate the chrism (myron) on Holy and Great Thursday, when needed. For this reason, the church is also known as the "Patriarchal Church of the Great Myrrh". At one time, the patriarch would consecrate all of the chrism used throughout the entire Orthodox Church. However, now the heads of most of the autocephalous churches sanctify their own myrrh. The church is located in the Fener (Phanar) district of Istanbul, north-west of the historic centre of old Constantinople. (Its address is Fener Rum Patrikhanesi, Sadrazam Ali Pasa Cadesi, Fener 34220, Istanbul.) It is a relatively small church, especially so considering its status in world Christianity; this, however, can be explained by the Islamic laws of the Ottoman Empire that governed the rights of dhimmis, which stipulate that all non-Islamic buildings must be smaller and humbler than corresponding Islamic buildings such as mosques: prior to the Ottoman conquest of Constantinople in 1453, the church of the Patriarchate was the Hagia Sophia (also known as the Cathedral of Holy Wisdom). The church is open to the public from 8.30 am to 4 pm, but strict security screening is in place, as a measure against the possibility of an attack from Islamic extremist groups. It is visited by a stream of pilgrims from Greece and other Orthodox countries. Behind the church are the offices of the Patriarchate and the Patriarchate Library. The church, which was part of a convent or monastery before becoming the seat of the Patriarch, is outwardly unimpressive, but its interior is lavishly decorated.

The Ecumenical Patriarchate of Constantinople (Greek: Οἰκουμενικὸν Πατριαρχεῖον Κωνσταντινουπόλεως, romanized: Oikoumenikón Patriarkhíon Konstantinoupóleos, IPA: [ikumeniˈkon patriarˈçion konstandinuˈpoleos]; Latin: Patriarchatus Oecumenicus Constantinopolitanus; Turkish: Rum Ortodoks Patrikhanesi, İstanbul Ekümenik Patrikhanesi, "Roman Orthodox Patriarchate, Ecumenical Patriarchate") is one of the fourteen to sixteen autocephalous churches (or "jurisdictions") that together compose the Eastern Orthodox Church. It is headed by the Ecumenical Patriarch of Constantinople, currently Bartholomew I, Archbishop of Constantinople. Because of its historical location as the capital of the former Eastern Roman (Byzantine) Empire and its role as the mother church of most modern Orthodox churches, Constantinople holds a special place of honor within Orthodoxy and serves as the seat for the Ecumenical Patriarch, who enjoys the status of primus inter pares (first among equals) among the world's Eastern Orthodox prelates and is regarded as the representative and spiritual leader of Eastern Orthodox Christians.The Ecumenical Patriarchate promotes the expansion of the Christian faith and Eastern Orthodox doctrine, and the Ecumenical Patriarchs are involved in ecumenism and interfaith dialogue, charitable work, and the defense of Orthodox Christian traditions. Prominent issues for the Ecumenical Patriarchate's policy in the 21st century include the safety of the believers in the Middle East, reconciliation of the Eastern Orthodox and Catholic churches, and the reopening of the Theological School of Halki, which was closed down by the Turkish authorities in 1971.