The Bosphorus, or Bosporus with its historical name, is a strait and international waterway that separates the continents of Asia and Europe and connects the Sea of Marmara and the Black Sea. The Bosphorus generally stretches in the northeast-southwest direction and divides the city of Istanbul into the European Side and the Anatolian Side. The Bosphorus is a gateway connecting Asia and Europe and is 30 kilometres long. It is the point that connects the Black Sea and the Sea of Marmara. The depth of the Bosphorus is 60 metres on average, and the deepest point reaches up to 120 metres. Its width is very variable due to its distance from the shore, and its widest point is 3500 metres. In the Bosphorus, there are currents from the Black Sea to the Marmara on the water surface, and from the Marmara to the Black Sea underwater. There are also occasional counter currents on the water surface.

Built by Genoese in 1348, the nine-story tower is 66.90 metres, and it was the tallest building in the city when built. In the Ottoman Era, the tower has been used for different purposes such as a fire observatory and a jail. During its long history, the tower witnessed a lot, but the most striking occasion undoubtedly was in 1632, when Hezarfen Ahmet Celebi glided from the top of the Galata Tower across the Bosphorus to Uskudar with his self-constructed wings. During a storm in 1875, the conic roof of the tower was destroyed and was not restored during the rest of the Ottoman Era. In 1960s the conical cap has been restored and the wooden interior was replaced by a concrete structure. Since then, the tower is open to public. Today there is a restaurant and cafe on its upper floor. With its essential role in Istanbul's skyline, Galata Tower is the optimum spot to catch a panoramic view of Istanbul.

The Maiden's Tower (Kiz Kulesi) is a distinctive feature of the Bosporus skyline. Built on a tiny island located about 200m from the shore of Uskudar, the tower is the main subject to many legends. The most popular legend though is about a sultan and his daughter. An oracle prophesied that the sultan's daughter would be killed by a snake bite on her 18th birthday. The sultan decided to protect her from this misfortune and had the tower built in the middle of the Bosphorus, where she was put to live her life in secrecy and protection. Finally on her 18th birthday, the sultan brought her a basket of fruits as a birthday gift, not aware of the hidden snake inside. Upon reaching into the basket the princess got bitten by the snake and died in her father's arms as foreseen by the oracle. Referring to this legend the tower got its name: Maiden's tower.

Dolmabahçe Palace is an Ottoman palace located on an area of ​​250.000 m² in Istanbul, Beşiktaş, between Dolmabahçe Street stretching from Kabataş to Beşiktaş and the Bosphorus. It is located on the left bank at the entrance to the Bosphorus from the Sea of Marmara, opposite Uskudar and Kuzguncuk. Dolmabahçe, which used to be a cove where ships anchored in ancient times, became the favourite residence of the sultanate, carries the memory of centuries and the clear splendour of the waters of the Bosphorus.

The Cıragan Palace was commissioned by Sultan Abdulaziz and designed by the architect Sarkis Balyan. It is located in the place of a former wooden summer palace built by Selim Ill in 1800. In the course of the palace's construction the wooden structure and the nearby Besiktas Mevlevihane were destroyed. Cıragan's construction was completed in 1871. The palace is made of marble and is spread out over a total area of 80,000 square metres. After Abdelaziz was deposed, he was imprisoned here for years together with his family. After Murat V was deposed, he was also imprisoned here in a similar fashion for 29 years with his family. After the declaration of the Second Constitutional Monarchy in 1908, the palace was used as the House of Parliament, however it was damaged by fire in 1910. The palace grounds were transferred to the Besiktas Sports Club and were used for some time as the Seref Stadium. Towards the beginning of the 1990's the palace was restored and reopened as a luxury hotel.

Ortakoy is a area and district in the district of Beşiktas, on the European side of the Bosphorus. Ortakoy district, which consists of Ortakoy and Mecidiye districts, is a settlement established on the slopes along the valley opening to the coast. The northern border of the district, which is surrounded by Kurucesme, Ulus, Levazım, Balmumcu and Yildiz districts, is Defterdarburnu. Ortakoy Bazaar is lively at all hours of the day with its "intellectual market", souvenir shops, cafes, bars and restaurants inside the bazaar. But in the early hours of the morning, the market is a bit uninspiring. The movement starts after 10:00 am...

The feet of the Bosphorus Bridge, one of the two suspension bridges on the Bosphorus, are located in Ortaköy on the European side and in Beylerbeyi on the Anatolian side. The Bosphorus Bridge, the first bridge built on the Bosphorus, provides access between the two sides of the city, together with the later Fatih Sultan Mehmet Bridge and the ferries operating on the Bosphorus. The idea of ​​building a bridge over the Bosphorus is quite old. After many attempts, the construction of the Bosphorus Bridge started in 1970 and the bridge was opened on 29 October 1973, the 50th anniversary of the proclamation of the Republic. This suspension bridge, which is an important link in the Turkish transport network and is very active at all hours of the day, is also an important crossing point of the Istanbul Eurasa Marathon organised by the Istanbul Metropolitan Municipality. In addition to transport, the bridge is one of the important symbols of Istanbul with its unique Bosphorus view.

The Beylerbeyi Palace (It means -Lord of Lords") is an Ottoman summer palace complex built in the 1860's on the shores of the Bosphorus. Today it lies right under the Bosphorus bridge. The building was designed by the well-known architect Sarkis Balyan and it combines elements of renaissance, baroque and other styles from both the East and West. The main building of the complex is a two-store construction, made of stone, on a high basement. The building was constructed on a land of about 2,500 square metres sits on a rectangular floor area. The South side of the Palace was organised as Imperial Mabeyn and The North side as Valide Sultan's Apartment. There is total 6 halls, 24 rooms, 1 hamam and 1 bathroom at two stores. In addition to the fantastic view of the Bosphorus and historical architecture, one should not miss exploring its lily pond and large garden.

The history of the Galata Bridge (Galata Koprusu), one of Istanbul's most exciting spots, begins in 1845. The bridge, which spans the two sides of the Golden Horn, has gone through many changes over the years. Most recently the bridge was damaged by fire in 1992 and a new bridge was built in its place. The beloved old bridge was moved to Halic. The Galata Bridge is an important symbol of Istanbul and has an important place in the daily life of the city, as well as in its literature and popular culture. With its restaurants, cafes and hookah lounges below and the tramway and pedestrian traffic passing above it offers a splendid view of the city, particularly in the evening. Toget.