At first glance, it’s hard to believe that vibrant Norfolk Island could have a dark past. Yet during the 19th century, the now-peaceful Australian retreat was a convict colony, home to criminals who’d been banished into exile. Today, the archaeological remains of the penal colony have UNESCO World Heritage status and are revered for their historical significance. You can visit the settlement’s remains, an eerie yet beautiful collection that includes a jail, a cemetery, lumbar yard and salt house.