The ₹300 base ticket does NOT include the Crystal Gallery or the audio guide (₹200 extra) - staff at the counter often don't volunteer this, so ask exactly what your ticket covers before paying.
Built and extended by the Mewar rulers over centuries on the hill above Lake Pichola, the City Palace is a maze of courtyards, mirror-work rooms, balconies and museums with sweeping lake views. It is the single biggest sight in the city, and the Crystal Gallery and the boat ride are ticketed separately.