Darüşşafaka Ayhan Şahenk Sports Hall

Darüşşafaka High School is a school in Maslak, Istanbul, Turkey. The school was founded by the Darüşşafaka Association with the name "Darüşşafakar’ül İslamiye" in 1873. This date is disputed, with some sources claiming it was 1872. However, there is a consensus that the school started formal education in 1873 in the Fatih district of Istanbul, on the street named after the school, Darüşşafaka Caddesi, and gained its first graduates in 1881. The school moved to its current location in 1994. However, the street still holds the name of Darüşşafaka as the side street in front of the school's gate, Darüşşafaka Ön Sokak (Darüşşafaka Front Street in Turkish) also does.

İTÜ—Ayazağa is an underground rapid transit station on the M2 line of the Istanbul Metro. It is located under Büyükdere Avenue in Maslak, the second largest financial district in Istanbul after Levent. The station services the Istanbul Technical University (Turkish: İstanbul Teknik Üniversitesi) or İTÜ as well as the Maslak financial district. İ.T.Ü.-Ayazağa has an island platform serviced by two tracks. The station was opened on 31 January 2009 as part of the northern extension of the M2 line.

Darüşşafaka is an underground rapid transit station on the M2 line of the Istanbul Metro. It is located under Büyükdere Avenue in southern Sarıyer. The station was opened on 2 September 2010 as a northern expansion of the M2 line. Until 29 October 2011 it served as the northern terminus until the line was further extended to Hacıosman. Darüşşafaka has an island platform serviced by two tracks.

Atatürk Oto Sanayi is an underground rapid transit station on the M2 line of the Istanbul Metro. It is located under Büyükdere Avenue just north of Maslak. The station opened on 31 January 2009 as part of the northern extension of the M2. It served as the northern terminus until 2 September 2010 when the line was extended further north to Darüşşafaka. Atatürk Oto Sanayi has an island platform serviced by two tracks.

Hacıosman is an underground rapid transit station and northern terminus of the M2 line of the Istanbul Metro. It is located in southern Sarıyer under Tarabya Bayırı Avenue. Hacıosman was opened on 29 April 2011 as a northern extension of the M2 to service neighborhoods in Sarıyer. It has an island platform serviced by two tracks.

Türkmenbaşı Nature Park (Turkish: Türkmenbaşı Tabiat Parkı) is a nature park located in Sarıyer district of Istanbul Province, Turkey.Situated west of Hacı Osman Bayırı Avenue in the PTT Evleri neighborhood of Büyükdere in the district of Sarıyer, it covers an area of 5.6 ha (14 acres). It was established in 1998 as a place, to dignify the cultural values shared by Turkey and Turkmenistan. It was named "Turkmenbashi" (literally: Head of Turkmens), in honor of Saparmurat Niyazov (1940–2006), the leader of Turkmenistan.The nature park offers outdoor recreation activities such as hiking and picnicing for visitors on daily basis. There is a playground for children.

İstinye Park is a shopping center in the İstinye quarter of Istanbul, Turkey with 291 stores, 85,250 m2 (917,600 sq ft) of retail area, and four levels of underground parking. The center features both enclosed and open-air sections. The open-air section has a green central park and offers street-side shopping. The center includes an authentic Turkish food bazaar- a traditional market place, inspired by Turkish architecture and history.

Diamond of Istanbul is the tallest building under construction in Istanbul, Turkey, being built on the Büyükdere Avenue in the city's Maslak central business district of Sarıyer. It is also the country's first steel skyscraper. When completed, it will rise 63 floors above ground level and reach an above-ground height of 311 meters. Its design, by Dome Architecture of Istanbul, comprises three steel wings connected to the central (concrete) elevator core. The three wings (towers) will house a luxury hotel (the tallest tower), A-class offices (the second-tallest tower), and rental skyscraper apartments (the shortest tower.) The tallest of the three wings (the hotel tower) will have an overall total of 63 floors above ground (three retail facility floors, 48 hotel tower floors and two panoramic restaurant floors above the hotel floors, at heights of 249.10m and 263.10m, respectively), and reach an overall structural height of 311m from street level. The steel wings rise from the common podium of a shopping mall comprising five floors - three above-ground and two below. The complex also has a five-floor parking garage situated in the bottom-most basement floors of the building (with a total of eight basement floors below ground level.) The panoramic restaurant on the top-most floor will be at one of the tallest man-made points in Istanbul and Turkey.

Elgiz Museum (Turkish: Elgiz Müzesi) is a private collection museum, founded by Dr. Can Elgiz. The museum opened in 2001, when there were no non-profit institutions in Turkey dedicated to contemporary art. Established with a mission to promote the development of contemporary art in Turkey, the initiative focused on giving space, support and international visibility to projects by young Turkish artists. As new art institutions and museums bloomed in Turkish art scene in 2005, the collectors converted the space to a private collection museum under the name ‘Elgiz Museum of Contemporary Art’ to host the Elgiz Collection. Elgiz Museum is located in the dynamic business district of Istanbul, Maslak and is open to the public free of charge.

Maslak is one of the main business districts of Sarıyer, Istanbul, Turkey, located on the European side of the city. It was formerly an exclave of the municipality of Şişli, though being far north and actually closer to the municipalities of Sarıyer and Beşiktaş. Therefore, a legislation was approved by the Interior Commission of the Turkish Parliament on October 18, 2012, that shifted the jurisdiction of the Maslak district from Şişli to Sarıyer. Maslak is in direct competition with the nearby Levent business district for new skyscraper projects. At the present, the tallest completed skyscraper in Maslak is the 47-floor Spine Tower which reaches a structural height of 202 meters; while the tallest skyscraper currently under construction in Maslak (as well as Istanbul and the rest of Turkey) is the Diamond of Istanbul, which comprises three centrally-connected towers, the tallest of which will have 53 floors above ground and will reach a structural height of 270 meters (thus surpassing the current tallest completed skyscraper in Istanbul, the 54-floor, 261 meters tall Istanbul Sapphire in the nearby Levent business district.) The Diamond of Istanbul will also be the first steel skyscraper in Turkey, where (as opposed to the situation in the United States) constructing with steel costs more than constructing with concrete. The reason for choosing steel was its relative strength in resisting earthquakes (Istanbul is located along the North Anatolian Fault), whereas concrete is more fire-resistant. The stations İTÜ-Ayazağa and Atatürk Oto Sanayi of the M2 line of the Istanbul Metro serve the Maslak business district and its surrounding neighborhoods.

The Borsa İstanbul (abbreviated as BIST) is the sole exchange entity of Turkey combining the former Istanbul Stock Exchange (ISE) (Turkish: İstanbul Menkul Kıymetler Borsası, IMKB), the Istanbul Gold Exchange (Turkish: İstanbul Altın Borsası, İAB) and the Derivatives Exchange of Turkey (Turkish: Vadeli İşlem Opsiyon Borsası, VOB) under one umbrella. It was established as an incorporated company with a founding capital of ₺423,234,000 (approx. US$240 million) on April 3, 2013, and began to operate on April 5, 2013. Its slogan is worth investing. Shareholders of Borsa İstanbul are: 49% Government of Turkey, 41% IMKB, 5% VOB, 4% IMKB members, 1% IMKB brokers and 0.3% IAB members. It is planned that all the Government-owned shares will be offered for sale. Among the executives of the nine-member board of directors, which is presided by chairman Himmet Karadağ, are former deputy chairman of ISE Osman Akyüz, former head of VOB Işınsu Kestelli, Merrill Lynch Investment Bank General Manager Hüseyin Kelezoğlu and Chairman of Turkish Association of Capital Market Intermediary Institutions Attila Köksal.

The ITU Süleyman Demirel Cultural Center is a multi-venue building located within Istanbul Technical University's Ayazağa campus in Maslak, Istanbul. The university's academic and cultural activities are held in this center.