The architecture of the Forbidden City is awe-inspiring.
Tips
history
From the Zuozhuan (左传): when a nobleman saw the greatest ritual dance, he sighed (叹) that it was the ultimate sight to see (观止), and there was nothing more to watch.
memory
叹 (sigh in awe) + 为 (consider it) + 观止 (the best thing to see) — sighing that this is the pinnacle of what can be seen.