The main places to visit in Izmir that you can't miss on your trip are the world-renowned ancient cities like Ephesus, Pergamum, and Sardis. The most famous of these Izmir attractions is Ephesus, which was one of the twelve Ionian cities on the shores of the Aegean Sea, and is located between the north end of Panayir Dağ and the mouth of the Cayster River. It was an important religious, cultural and commercial center, and today its ruins are a major tourist attraction.
Next to it is Ayasoluk Hill and Selçuk. We can continue by visiting Jewish neighborhoods that are popular things to see in Izmir -- Asansör and Havra Sokak. The latter is one of the oldest Jewish neighborhoods of the city, whose buildings and streets retain their original style. Alsancak, meanwhile, is one of the districts with more traditional Turkish houses. Many have been restored to become bars, cafés, and restaurants and is a good place to walk, have a drink, or enjoy other typical Izmir activities.
Other things to do in Izmir include visiting the Hisar Mosque, the most beautiful and largest mosque in the city. It was built in the 16th century and restored in the 19th century, and its interior features a beautiful pulpit and mihrab pointing towards Mecca. Nearby is Saat Kulesi, the clock tower at Konak Square. It was built in 1901 as a gift from Sultan Abdül Hamid. For more attractions in Izmir, go to the Kemeralti Market where you can find antiques, jewelry, traditional costumes, perfume,and more, and then if you're still asking what to do in Izmir, continue along the streets in Karsiyaka and Cumhuriyet Caddesi, which are ideal for shopping. Be sure to check out what minube users say about stuff to do in Izmir!