Traffic congestion of cars and lorries travelling in both directions on M25 motorway, London, United Kingdom

Massive tailbacks on Highway 63 north of Fort McMurray caused by tar sands workers at going home time, Alberta, Canada, North America

Gipsies travelling towards the Appleby Horse Fair on a horse drawn caravan near Kirkby Lonsdale, Cumbria, England, United Kingdom, Europe

Traffic jam in front of a tunnel, Lake Como, Italy

Himalayan people wearing traditional clothes, waiting, watching a tailback of trucks, Rohtang Pass, shortly after a landslide, Himachal Pradesh, northern India, India, Asia

MEXICO Mexico City Traffic congestion on Paseo de La Reforma long tailback of cars and taxis. traffic jam gridlock