Jewish Museum of Turkey

One of the icons of the city is also called the Leander's Tower, on a Bosphorus islet off Salacak. The local myth ascribes its name to a princess, whose father wanted to protect her in this offshore tower from a prophecy that she would be killed by a snakebite on her birthday, but the snake found its way inside a basket of fruits — ironically a birthday present from her father — and you've probably already guessed the rest of the story. In actual timeline, it served as a defensive structure (there was a wall connecting it to the Asian mainland, and the Byzantines used to stretch a chain from here to the European mainland across the mouth of the Bosphorus to shut it to adversary shipping in times of conflict, but they didn't during the final Ottoman siege in 1453), as a customs and quarantine station, as a lighthouse, as a warehouse of various sorts of goods, and as a high-end restaurant before the last restoration finished in 2023 dedicated it as a museum. There is a light show viewable from the mainland every day at 21:00.

A village with an impressive citadel overlooking the Bosphorus and its mouth into the Black Sea. By land it's accessible only by a hairpinning road through the forest, with few buses. It's best reached by ferry from Eminönü (twice daily) or Sariyer (frequent). In the village, a road is signposted up to the hilltop Yoros citadel (a little more than 1 km, 20 min on foot, free admission). There's a pleasant area with cafés by the ferry pier; the place gets crowded at weekends during summer. Nasty big dogs stalk the citadel area at night. See Istanbul#The_classic_Bosphorus_cruise.

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.

The only active Ashkenazi Synagogue open to visits and prayers.

A small town 40 km west of central Istanbul and 15 km north of Büyükçekmece that had a substantial Greek population until the 1920s transfers. Spared from destruction in the Balkan wars which foreshadowed the Great War, the old quarter has many historic wooden buildings and fountains in leafy squares. A short stretch of the old town walls still stand just north of the centre. In the outer areas, bunkers of the WW2 'Çakmak Line' and remnants of the Byzantine Anastasios Walls could be observed. The town's main sight, housed in a red brick neoclassical building erected as a Greek tavern, this museum commemorates the forced population transfer of 1922–26, whereby Greeks living in Turkey were expelled to Greece, while the Turks of Greece were expelled to Turkey.

The third and grandest of the churches on this site, completed in 537 AD. The 30-m diameter dome covers what was for over 1000 years the largest enclosed space in the world, only surpassed in 1520 by Seville cathedral. It used "pendentive" architecture to throw the dome's weight onto four stout pillars, a design that inspired many Eastern Orthodox churches and Ottoman mosques. It became a mosque after the Ottoman conquest in 1453, remaining so until 1931. It was then a museum until 2020 when it was again proclaimed a mosque. That means you must work around prayer times and dress appropriately.

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.

Tiny house museum on the life of Turkish novelist Orhan Kemal (1914–1970).

Situated on the gentle hill overlooking the neighbourhood of Emirgan and the Bosphorus, Emirgan Park was for long the only place in the city where Istanbulites can admire the beauty of tulips. Having lost that distinction since the first decade of the 2000s as tulips are now everywhere, this is still a beautiful park with artificial ponds, small waterfalls, and impressive views of the Bosphorus. There are also cafes with open-air sections housed in pleasant former imperial hunting manors. Squirrels are there, too, in the middle of this metropolis of more than 15 million people, though you may have to look a bit deeper (or a bit upper on the branches!) to spot them.

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).

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).

This is a triple structure: the church of the Monastery of Pantokrator built 1118, then a public church circa 1136 plus a chapel that served as a royal mausoleum. It became a mosque and medresse in Ottoman times, but without massive alteration so it's a prime example of middle-Byzantine architecture. It's nowadays again a mosque, photogenic by day or dusk but the area should be avoided at night.

This was built in the 1430s by Grecian Jews ("Romaniotes") from the city of Ohrid, now in North Macedonia. The district of Balat was a Jewish quarter, swelled from 1492 by those expelled from Spain. The synagogue is only open for pre-arranged tours.

A profusion of carpets, rugs, calligraphy, pottery, Qu'rans and other manuscripts. The museum is housed in the Palace of Pargalı Ibrahim Pasha (1495–1536), who was grand vizier to Suleiman the Magnificent, and the best of pals till Suleiman had him murdered.

This was rediscovered in 2010 when an overlying building was demolished. It was built circa 430 AD to store water brought in by Valens Aqueduct. It's smaller than the better-known Basilica Cistern, but better lit, more atmospheric and less touristy.

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).

Built in first half of the 15th century, this is the large medieval castle under the Second Bosphorus Bridge. Its former name Boğazkesen (Turkish)/Laimokopia (Greek) means both "strait-blocker" and "throat-cutter" in both languages and denotes the reason of its building—to shut the supply routes from the Black Sea in the north into the slowly falling apart Byzantine Empire through the Bosphorus. Rumeli, literally "the Roman land", was the name of the European half of the Ottoman Empire, and as is usual with some other structures and villages along the Bosphorus, used as a prefix to differentiate Rumeli Hisarı from its counterpart in the Asian Side, the much smaller Anadolu Hisarı just across the Bosphorus.