1. 水族馆   art gallery   statue   inn   aquarium   Hint Half-n-half Clue   2. 机场   statue   art gallery   airport   monument   Half-n-half Clue   3. 宫殿   exchange office   camping site   palace   amusement park   Half-n-half Clue   4. 驻地   station   exchange office   statue   monument   Half-n-half Clue   5. 国家公园   motel   station   national park   airport   Half-n-half Clue   6. 纪念碑   zoo   motel   beach   monument   Half-n-half Clue   7. 博物馆   exchange office   station   cathedral   museum   Half-n-half Clue