At Window of the World, you can see miniatures of 130 world sites, such as the Leaning Tower of Pisa, the Eiffel Tower and Angkor Wat. Splendid China, its sister site, gives you a taste of what you can see elsewhere in the country, such as the Hanging Temple — you can actually climb to its top in Shanxi province. Walk through the miniature cultural villages and learn about China's minority ethnic groups.
If you're feeling a little full from your last authentic Chinese meal, do some scenic stairmastering at Nanshan Mountain. Climb the 700 steps to the top and admire views of the modern city from the lush green surroundings. If you're fast enough, one hour up and one hour down should be enough time to budget.