SAN FRANCISCO - Google's in-house start-up incubator "Area 120" has introduced a travel guide website called "Touring Bird" that lists tours, attractions and activities for travellers and tourists in popular travel destinations. "Area 120" is a workshop for the tech giant's experimental products. So far, the site provides information about 20 cities that include New Delhi, Prague, Chicago, Amsterdam, Barcelona, Berlin and Las Vegas among others and...