Start with the Forbidden City and the hutongs, then leave a full day for the Great Wall. Beijing rewards a neighborhood-based plan: its imperial sights are extensive and the city is much larger than a map suggests.
Build your days around an early panda visit, an unhurried teahouse break and Sichuan food. Central neighborhoods work well as a base; wider Sichuan excursions need their own travel days.
Shanghai pairs the Bund's historic facades with Pudong's skyline and the quieter streets around Xuhui and Jing'an. Make time for museums, local breakfasts and a riverfront walk rather than only observation decks.
The Terracotta Warriors are the headline, but Xi'an deserves time inside its walls. Pair a museum day in Lintong with city-wall views, neighborhood food and the area around the Giant Wild Goose Pagoda.