I am planning go to Xian-Zhengzhou-Luoyang for 6 days, which place interests to visit?

In Xian, you can visit the main attractions including Terracotta Warriors, Shaanxi History Museum, ancient City Wall, Big Wild Goose Pagoda, etc. The scenic spots in Zhengzhou are quite limited. On the way to Luoyang, you can visit the famous Shaolin Temple, Longmen Grottoes and White Horse Temple. Hope it helps.