Xi'an is the ancient capital where the Terracotta Army guards the tomb of China's first emperor.
The Terracotta Army, the ancient city wall, the Muslim Quarter, and the Big Wild Goose Pagoda.
Roujiamo (meat burger), biangbiang noodles, and Muslim Quarter street food.
Metro + taxis; the Terracotta Army is a 1-hour bus/ride from downtown.
Rent a bike and ride the top of the ancient city wall at sunset.
About 40km from downtown — plan half a day.
Yes, easy access from Beijing and Shanghai.