Photo taken on June 29, 2018 shows the mirrored stainless steel spheres at the preview of Japanese artist Yayoi Kusama's site-specific installation of Narcissus Garden at the Gateway National Recreation Area at Fort Tilden in New York, the United States. Yayoi Kusama's Narcissus Garden, which is made of 1,500 mirrored stainless steel spheres, will open to public from July 1 at a former U.S. army base in New York. (Xinhua/Wang Ying)