PGK Art: Sometimes, reality is difficult to discern. Orient Overseas Associates – 88 Pine Street (also known as Wall Street Plaza), Manhattan, New York City “East-West Gate,” installed in front of the Orient Overseas Building (88 Pine Street in New York) in 1973, is one of Yu Yu Yang’s best-known LifeScape sculptures. 1973. Yuyu Yang (1926-97) was a prominent sculptor in Taiwan and China.