People pray inside a temple at the Janmashtami Hindu Festival at Bhaktivedanta Manor on August 22, 2011 in Watford, England. Up to 72,000 were expected to take part in the two day festival celebrating the birth of Krishna, in what is believed to be the largest Hindu festival gathering outside of India. (Photo by Dan Kitwood/Getty Images)

People fall down as they try to form a human pyramid to break the “Dahi handi”, an earthen pot filled with curd, an integral part of celebrations to mark Janmashtami in Mumbai, India, Monday, August 18, 2014. Hindu devotees take part in the celebration in which an earthen pot is suspended high above the ground and groups of young men and children form a human pyramid to reach the pot and break it. The festival celebrates the birth of Hindu god Lord Krishna, one of the most popular gods in Hinduism. (Photo by Rafiq Maqbool/AP Photo)

General view of the atmosphere at the Halloween celebrating in city centre on October 29, 2021 in Newcastle, United Kingdom. (Photo by Newcastle New Projects)

Krysten Ritter is seen at Sundance Festival on January 19, 2014 in Park City, Utah. (Photo by Alo Ceballos/GC Images)

Google has built its first self-driving car prototypes and hopes to test hundreds more models this summer. If all goes well, the company is planning a pilot program in California over the next few years.