Aerial photo shows rescuers helping a stranded whale in Xiangshan county of Ningbo, East China's Zhejiang Province, on Tuesday. (Photo: Xinhua)

Children paint cherishing the Earth at a kindergarten in Shanggao county, Yichun, East China's Jiangxi Province, on Wednesday. (Photo: chinadaily.com.cn)

A girl reads at a bookstore on World Book Day in Rong'an county of Liuzhou, South China's Guangxi Zhuang Autonomous Region, on Saturday. (Photo: Xinhua)

A man reads a book at a street library in Jerusalem ahead of the World Book Day, on Friday. Saturday marks the World Book Day. (Photo: Xinhua)

People visit the China National Botanical Garden in Beijing, capital of China, on Monday. (Photo: Xinhua)

An Easter Bunny begins the daily briefing at the White House in Washington, on Monday. (Photo: AP)

Revelers dance during an unofficial street party called "blocos" in Rio de Janeiro, Brazil, on Thursday. (Photo: AP)

This spherical panorama taken with a drone on Tuesday shows a farming machine working in a cotton field in a farm of a division of Xinjiang Production and Construction Corps in Northwest China's Xinjiang Uygur Autonomous Region. (Photo: Xinhua)

Fireworks light up the sky during a fireworks show held at the foot of Mount Fuji in Yamanashi, Japan, on Saturday. (Photo: Xinhua)

The sun rises behind the skyline of lower Manhattan and One World Trade Center in New York City on Wednesday, as seen from Green Brook Township, New Jersey. (Photo: CFP)