Sokollu Mehmed Pasha I Mosque

The defining image of Istanbul, dominating the skyline with its great dome and six minarets. Completed in 1617 for Sultan Ahmed I, it's still a working mosque, so dress appropriately and avoid prayer times. Enter via the courtyard on the SW side. You step (shoeless) into the blue-tiled prayer hall beneath the main dome and its semi-domes. The mihrab is of finely carved marble, well-lit, and the minbar (pulpit) next to it is visible from almost all parts.

Stretching west from the park is this impressive 16th-century stone bridge with four humps and 28 arches spanning the channel between lagoon and sea. The bridge is pedestrian only and offers some very nice views, so it's worth walking across the entire (breezy!) span via the three islets to the quiet western end, even though beyond is industrial gap site, with the modern highway roaring to the south. In the park, the pillbox menacing the bridge was part of the "Çakmak Line", the World War II fortifications stretching from here to Terkos, which were Istanbul's last line of defence from the west. The pillbox exterior is colourfully decorated but the interior is closed.

Built 1748-55, this launched the style we call Ottoman Baroque, with its grand central dome and pencil-thin minarets. It was copied throughout their empire and is replicated in new mosques even today. The name means "light of the Ottomans," and the interior uses light powdery decor, bathed with much more natural light than its gloomier classical predecessors. The complex also has a madrasa and the imaret (public soup kitchen).

The original mosque was built between 1463-1470 by the Greek architect Atik Sinan, by order of Sultan Mehmet II the Conqueror, on the site of the former Church of the Holy Apostles, which had served as Byzantine Imperial burial place for a thousand years. The grand complex with eight medreses, a library, hospital, hospice, caravanserai, market, hamam, primary school and public soup kitchen was smashed again and again by earthquakes, and the present building is from 1771 to a different design. The interior is lavish, and outside is the ornate tomb of Mehmet II and his wife Gülbahar Hatun.

About 15 minutes walking north of Beylerbeyi lies the historical fishing village Çengelköy. Its long history is attested by an 800-year-old sycamore tree on one of the two main terraced squares, and the Byzantine Aya Yorgi church. The restaurants and piers of Çengelköy offer some of the best panoramas along the Bosphorus, including a view on the old city under the first bridge. The neighborhood was popular amongst TV directors during the 1970s and it has become a (possibly the most) popular location to have lunch or dinner on the eastern side of Istanbul. Many historic mansions have been restored and multiple boutique chocolatiers were opened. Most restaurants in Çengelköy don't offer alcoholic beverages. Exceptions include the restaurant at the main pier (Iskele), and Tapasuma, the restaurant of hotel 'Sumahan on the Water', located in a former Ottoman Raki distillery. You can get there by taking bus 15 or 15F from Üsküdar, it is just a few stops further than Beylerbeyi. Going to Çengelköy by car is not advised; traffic can be very intense on the narrow road along this side of the Bosphorus.

A Byzantine monastery complex carved into a cliff, set in a lush valley. The site is free, but May-Sept there's a 32 TL toll for cars on the access roads. There's a picnic area, pity about all the trash, and a couple of restaurants nearby.

The building was erected as a Roman Catholic church in 1325 by the friars of the Dominican Order, near or above an earlier chapel dedicated to Saint Paul (Italian: San Paolo) in 1233. In 1299, the Dominican Friar Guillaume Bernard de Sévérac bought a house near the church, where he established a monastery with 12 friars. A new, much larger church was built near or above the chapel of San Paolo in 1325. Thereafter the church was officially dedicated to San Domenico. After the Fall of Constantinople, according to the Capitulations of the Ottoman Empire with the Republic of Genoa, the church, which by that time was known by the Turks under the name of Mesa Domenico, remained in Genoese hands, but between 1475 and 1478 it was transformed, with minor modifications, into a mosque by the Ottoman Sultan Mehmed II and became known as Galata Camii ("Galata Mosque") or Cami-i Kebir ("Great Mosque"). Towards the end of the century Sultan Bayezid II assigned the building to those Muslims of Spain (Andalusia) who had fled the Spanish Inquisition and migrated to Istanbul; hence the present name Arap Camii (Arab Mosque). Today, Arap Camii is the largest mosque on the Galata side of the Golden Horn. It is one of the most interesting mosques in the city due to its early Italian Gothic architectural style and church belfry, which has practically remained unaltered even after being converted into a minaret.

Dedicated to toys, this is a museum which adults can enjoy as much as kids. It's founded by poet Sunay Akın, and is housed in a historical mansion in the Göztepe neighbourhood east of Kadıköy. Among the 2,000 pieces of toys from around the world in exhibition, the oldest are a French-made violin from 1817 and a U.S.-made doll from 1820.

Named after a 16th-century village, founded by Serbs deported from Belgrade when it fell to the Ottomans. The village was popular as a forest resort, but its inhabitants were resettled in the 19th century and it's now a bosky ruin. The forest is mostly primordial and deciduous, predominantly oak. It's dotted with ancient aqueducts and dams as this area was a water catchment for Constantinople / Istanbul, and has lots of walking jogging and cycling trails and picnic areas. The two main ways in are via Bahçeköy (near the Arboretum entrance) and Kemerburgaz (which has the best aqueducts). There's a small access toll. The forest is supposedly a protected area but is being encroached on by highways and suburbs: this is likely to get worse as the access route to Istanbul's new airport leads right through it.

This is a 1927 Beaux Arts building named after its patron Süreyya İlmen Pasha, then a deputy of Istanbul who was impressed by theatres in Europe during his visits. It became the first opera house in the Asian side of Istanbul, but due to deficiencies in its interior design, it barely staged any opera and was converted to a cinema soon afterwards. It underwent a significant restoration and reverted to its original purpose in 2007, so now houses performances of ballet, opera, and classical music; good tickets are often extremely cheap.

The most interesting of the resorts along this part of the coast. The beach has multi-coloured stones much used as garden mosaics in the city. (Modern quarries nearby still extract these for the Turkish glass industry.) The town has restaurants and accommodation.

A private museum with a large painting collection and archaeological collections of measurement units and tools used in Asia Minor since antiquity and faiences of Kütahya.

On top of a hill overlooking the Golden Horn, this is a magnificent mosque built by Sinan in the 1550s. It was centrepiece of a large külliye, a religious complex which included madrasas, a public kitchen and a hospital.. The small cemetery east has the mausoleums of Suleiman the Magnificent and of his wife Hurrem Sultan or Roxelana.

If you are already in the area, it's worth considering to visit this waterside neo-Baroque manor, built in the 19th century for the countryside and hunting excursions of the Ottoman dynasty. The area, where the Göksu River flows into the Bosphorus, was known as "the Sweet Waters of Asia" by the pioneer European travellers of the epoch (as opposed to "the Sweet Waters of Europe", another contemporary elite recreational area on the other side of the city, where the Kağıthane and Alibeyköy Rivers empty into the Golden Horn).

The Byzantines built several great palaces in Constantinople and this is the only one to survive almost intact. It's from the late 13th century, in typical alternating marble and red-brick rows, and was an imperial residence: Porphyrogenitus means "born to the purple" indicating the heir to the crown. Yet it was merely an annex or pavilion within the much greater Palace of Blachernae, of which nothing else remains. It's set within the north end of the Theodosian Walls and was much bashed during the Ottoman capture. Later it was variously a menagerie, brothel, pottery, poorhouse and bottle works, then fell derelict in the 20th century. In 2021 it re-opened as a museum.

A neo-gothic Anglican cathedral which would not be out of place in northwestern Europe, the Crimean Memorial Church was built for the Protestant community of the city by Britain in the late 19th century. It was named in honour of the soldiers died in the Crimean War of 1856, fought against Russia by the allied Ottoman and British Empires. The congregation of the church today mostly consists of Anglican East Asians and Sri Lankans resident in Istanbul.

The avenue has little in common with Baghdad, except it was the beginning of the Ottoman-era route to that city followed by many, including Ottoman sultan Murat IV during his march upon Persia, after which he captured Baghdad. In fact, with its sidewalk cafés and Western restaurants, Bağdat Caddesi is usually considered as one of Istanbul's most western-flavoured streets, ironically located in Asia. This street is not completely pedestrianized unlike Istiklal Street, which serves a similar function on the European Side, but its broad sidewalks with tree shade offer a pleasant walk. The restaurants and cafés on the avenue are mainly upscale, but there are also some quite affordable ones scattered around occasionally. Shopping opportunities also abound. From Kadıköy, take the Bostancı-bound dolmuşes (from just south of the ferries) or the public bus #4 (its stop is near the one for the dolmuş, but separate).

Opened in 2012, this museum is unique and a must-see when you are in the Beyoğlu area. It was created by Turkish Nobel laureate Orhan Pamuk alongside a novel of the same name. It tells the love story of the two main characters from the novel, and represents life in Istanbul during the late 1970s to early 1980s, as it exhibits thousands of objects from that era.

Although not at the size of Hagia Sophia, this is the largest active church in Turkey. It’s directly on Istiklal St, but somewhat hidden from view by its yard portal. Catholic Masses in Italian, Turkish, and English (in different days of the week).

Turkey was slow to protect its antiquities and to display them properly, but in 1867 Sultan Abdülaziz toured the museums of Paris, London and Vienna and saw what was needed. The main collection is in a grand neo-classical building of 1891, with two annexes for ancient art and Islamic art. Exhibits include Sumerian tablets, pieces of the wall of Babylon, Roman statues, and the sarcophagus of Alexander the Great, which he never lay in.