Free Walking Sightseeing Tour #4 in Thessaloniki Municipal Unit, Greece

The Heptapyrgion, modern Eptapyrgio, also popularly known by its Ottoman Turkish name Yedi Kule, is a Byzantine and Ottoman-era fortress situated on the north-eastern corner of the Acropolis of Thessaloniki in Greece. Despite its name, which in both languages means "Fortress of Seven Towers", it features ten, and was probably named after the Yedikule Fortress in Constantinople. It served as the major redoubt of the city's acropolis, as well as the seat of its garrison commander in Ottoman times, until the late 19th century. It was then converted to a prison, which remained open until 1989. References to the infamous Yedi Kule prison abound in the Greek rebetika songs. Restoration and archaeological work began in the 1970s and continues to this day.

Wikipedia: Heptapyrgion (Thessaloniki) (EN)

Vlatades Monastery or Vlatadon Monastery is a monastery in Ano Poli, Thessaloniki, Greece. Built in the 14th century during the late era of the Byzantine Empire, it is a UNESCO World Heritage Site along with 14 other Paleochristian and Byzantine monuments of Thessaloniki because of its Byzantine architecture and importance of Thessaloniki during early and medieval Christianity.

Wikipedia: Vlatades Monastery (EN)

The Pammegistoi Taxiarches church is a Byzantine church located in the Upper Town of Thessaloniki, Greece. The church was built in the 14th century, and served as a mosque during the Ottoman period, before it was turned back into a church in 1912. The church underwent significant modifications during the 1950s and the 1960s, and unlike other Byzantine churches in Thessaloniki, a new section was added in neo-Byzantine style.

Wikipedia: Pammegistoi Taxiarches church (EN)

The Church of Hosios David is a late 5th-century church in Thessaloniki, Greece. During Byzantine times, it functioned as the katholikon of the Latomos Monastery, and was adorned with rich mosaic and fresco decoration, which was renewed in the 12th–14th centuries. The church is dedicated to David the Dendrite. Many surviving elements of the Byzantine decoration are of high artistic quality, especially the 5th-century apse mosaic the Icon of Christ of Latomos. Under Ottoman rule, the building was converted into a mosque, until it was reconsecrated as a Greek Orthodox church in 1921, thus receiving its present name. In 1988, this monument was included among the Paleochristian and Byzantine monuments of Thessaloniki on the list of World Heritage Sites by UNESCO.

Wikipedia: Church of Hosios David (EN)

The Church of Prophet Elijah is a 14th-century church in Thessaloniki, Greece, and a UNESCO World Heritage Site.

Wikipedia: Church of Prophet Elijah (Thessaloniki) (EN)

The Church of Saint Catherine is a late Byzantine church in the northwestern corner of the Ano Poli, Thessaloniki, Greece.

Wikipedia: Church of Saint Catherine, Thessaloniki (EN)

The Monastir Synagogue is a historic synagogue of the once vibrant Jewish community in Thessaloniki.

Wikipedia: Monastir Synagogue (Thessaloniki) (EN)

The Church of the Holy Apostles is a 14th-century Byzantine church in the northern Greek city of Thessaloniki. Because of its outstanding Byzantine mosaics and architecture, and its testimony to the importance of Thessaloniki in early and medieval Christianity, the church is inscribed on the UNESCO World Heritage List along with other Paleochristian and Byzantine monuments of Thessaloniki.

Wikipedia: Church of the Holy Apostles (Thessaloniki) (EN)