The Roman aqueduct of Moria with its enormous arches, and the Byzantine castles of Mytilene and Molyvos, remain unique witnesses of the island's former glory days, before the Muslim element assumed an important role in the development of the history of the island's buildings, after the Ottoman rule of 1462.
The "hayati" and the "sakhnisi", characteristic elements of the architecture of Smyrna and Constantinople, are often found in the mansions of Molyvos and Mytilene, showing the influence of the conqueror on the upper classes mainly who, due to trade contacts, had relations with the hinterland.
Settlements such as Mandamados, Kalloni and Polychnitos, Plomari and Agiasos make their appearance in this period in Lesbos, while the traditional stone-built houses and cobbled cobblestone streets are today picturesque corners, ideal scenes for honorable ouzo retreats...
Neoclassical to boldly eclectic townhouses can be found in Mytilini, but also in Molyvos and Plomari - witnesses of the heyday - when Lesbos supplied European markets with its extra virgin olive oil and musk soaps.
The cultural influences of Europe, in addition to the urban, also influenced the industrial architecture of Lesbos, whose intensive industrialization mainly concerned the collection and processing of olive fruit. The abandoned industrial complexes of the island (olive mills, oil mills, soap factories and tarsanades) are today a major part of the architectural heritage of Lesvos.