Archaeologists working on the Greek isle of Crete have unearthed an unusual structure belonging to the enigmatic Minoan culture. The structure, used between the year 2000 BC and 1700 BC, is large and labyrinthine, and it’s not clear what it was used for. The only bad news is that the structure may cancel or delay construction needed for a nearby airport. A flourishing civilizationThe recent excavations were carried out on a site called Papoura Hill, near a new airport construction site and a settlement called Kastelli. Archaeological sites are not uncommon in the area, but this circular struct…