Zhōngshān Líng shì Sūn Zhōngshān xiānsheng de língmù.
Sun Yat-sen Mausoleum is the tomb of Dr. Sun Yat-sen.
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culture
In Chinese, 陵 specifically denotes imperial or high-status mausoleums, not ordinary graves (those are 墓 or 坟). The character carries connotations of grandeur and royal burial sites.