The island of Hios has been mentioned several times and it is truly unique in Greece and the world. Among other things, there is a medieval village on the island, called Mesta. It was built by the Venetians, and numerous narrow, blind alleyways like mazes used to serve to mislead and confuse pirates. In these streets there are the houses of the inhabitants, which are also connected to each other. In the village center there are the square and the church, and it is the only open space. Earlier, there was only one entrance to the village. There are many video clips about this village that went viral. More interesting articles about Hios:
Source: iefimerida.gr

Watch the interesting video about Mesta.