"Tai Ji Quan" (Supreme ultimate Fist) is probably the most popular Chinese martial art style and is practiced everywhere on this planet. Taiji is a wushu style, just like nanquan, only that taiji is a soft, internal style while nanquan is an extern hard style. Taiji is so popular, because it also attracts people who are not even interested in martial arts. A sport for young and old. It's proven that taiji is healthy for body and mind (strengthens joints and muscles, stretching, meditation etc.) There are many different taiji styles, Chen (which was the first one), Wu, Yang etc. More info below.