Cobbled streets lined with 16th century burgher houses in the medieval citadel, Sighisoara, UNESCO World Heritage Site, Transylvania, Romania, Europe

The Syncrude upgrader plant on the tar sands project, Alberta, Canada, North America

Sign For No Entry And Wrong Way, Oakville, Ontario, Canada

'Do Not Enter' Signs by Snowy Road, Salt Lake City, Utah, United States of America

Low angle view of "wrong way" sign