Indian Prime Minister Narendra Modi, left front, lies down on a mat as he performs yoga along with thousands of Indians on Rajpath, in New Delhi, India, June 21, 2015.
Kashmiri students perform yoga as they mark International Yoga Day in Srinagar, Indian-controlled Kashmir, June 21, 2015.
Mukhtar Khan/AP Photo
Participants attend the Yoga Fest to mark the International Day of Yoga at the Medeo skating rink at an altitude of about 5,249 feet above sea level
in Almaty, Kazakhstan, June 21, 2015.
Chinese students from Geely University take part in a yoga workshop marking the International Day of Yoga, June 21, 2015, in Beijing, China.
Kevin Frayer/Getty Images
Participants perform yoga at an event to celebrate the International Yoga Day under the Eiffel Tower in Paris, France, June 21, 2015.
Kamil Zihnioglu/AP Photo
Afghan students perform yoga during the first International Yoga Day, at a private school in Kabul, Afghanistan, June 21, 2015.
Massoud Hossaini/AP Photo
Participants raise their feet as they attempt a yoga pose during the International Yoga Day inside a mall in suburban Taguig, south of Manila, Philippines, June 21, 2015.
Aaron Favila/AP Photo
People practice yoga in Times Square as part of a Summer Solstice and International Day of Yoga celebration in New York City, June 21, 2015.
Indian Border Security Force (BSF) personnel perform yoga on International Yoga Day in Khasa on the outskirts of Amritsar, June 21, 2015.
NARINDER NANU/AFP/Getty Images
Participants take part in a mass yoga session to mark International Yoga Day at Colon square in Madrid, June 21, 2015.
PIERRE-PHILIPPE MARCOU/AFP/Getty Images
Indian children perform water yoga as they take part in a mass yoga session to mark the International Yoga Day at Dau Ri Dhani Swiming Pool in Jodhpur, June 21, 2015.