Thessaloniki
Thessaloniki is the second largest country in Greece and serves as the capital city of the Central Macedonia region. It also has a rich history dating back more than 3,000 years. As a visitor, you'll find that the city has been touched by the Roman, Byzantine, and Ottoman empires, all of which left their mark. In particular, the many Byzantine churches are quite impressive, with some of them listed on the UNESCO World Heritage list.
You'll likely find yourself using the public bus system to make your way around the city most of the time. You can purchase your tickets ahead of time at a kiosk, or, if you have exact change, you can buy them from the driver. You really have three ticket options. The one way ticket costs 80 cents and is good for one trip. You can get a two journey ticket for 90 cents. This is good for two trips in a ninety minute period. There's also the option of a day pass for four euros. This will give you unlimited trips during that time period.
There are a good number of historic sights worth visiting throughout the city. Head to the northern side of the city where the Byzantine walls are still standing. You should also visit the White Tower, which dates back to the 16th century and is an important landmark for the city. There's also a great seafront promenade that enjoyable to walk down. The entire promenade covers a length of 12 kilometers in its entirety. Make sure you head to the upper town where you can see traditional old houses, quaint cobbled streets, a Byzantine citadel, and the Eptapyrgion fort. There is also no shortage of museums and galleries throughout the city, many of which are quite impressive and informative.
If you're interested in purchasing some local food specialties, head to Modiano market. Here you'll find sweetened breads, baklava, pastries and desserts. They are all quite delicious and many are freshly made.