According to forum posts, the main public bus service in Thessaloniki includes routes such as the 01X and 01N, which connect the airport to the city center and operate even at night. The cost of a bus ride was reported to be 2 euros as of the last update. Bus services also run from Thessaloniki to other cities like Hanioti and Istanbul, though specific details like frequency and duration were not mentioned.

Some travelers mentioned that taxi services are readily available, including from the airport to the city early in the morning. The cost of a taxi ride from the airport to the center is around 22-25 euros. There was an inquiry about ride-sharing services like Uber or Lyft, but no specific details on availability were provided in the posts.

For trips to specific destinations like Vergina, travelers need to use a combination of bus or train to nearby towns like Veroia and then take a taxi. This indicates that while buses and taxis cover most local and some regional travel needs, some destinations may require mixed modes of transport.

According to forum posts, Thessaloniki is rich in historical and cultural sites. Travelers recommend visiting the White Tower, Rotunda, and various Byzantine churches which can be explored on foot. The city is also famous for its archaeological sites, including the Roman Forum and the Arch of Galerius.

Some travelers said that exploring local markets and neighborhoods is a must. The Kapani Market offers a lively atmosphere with a variety of goods, while the Bit Bazaar is known for its antiques and vibrant food scene. Ano Poli, the upper town, provides beautiful views of the city and a quieter, more atmospheric experience with its traditional Ottoman-style houses.

For those interested in modern attractions, the newly opened Modiano Market comes highly recommended for food lovers. Additionally, Thessaloniki's seaside promenade is perfect for leisurely walks, and the city's numerous cafes and tavernas offer a taste of local cuisine and nightlife, particularly in the Ladadika district.

Travelers have called out several museums for those interested in deeper cultural immersion. The Archaeological Museum of Thessaloniki and the Museum of Byzantine Culture are noted for their extensive collections and are considered highlights for any visitor interested in the rich history of the region.