Sentence:  Now, 80 percent is accessible — quickly filling with exhibition spaces, stylish restaurants and cafes, bookstores, and highly profitable gift stores, as well as quiet walkways, shady stands of trees and odd nooks that invite <WSD>contemplation</WSD> of bygone dynasties. 
Meaning of the word marked with <WSD> tags:  The act of contemplating; musing; being highly concentrated in thought