Anything that keeps alive the memory of a person or event, as a pillar, a statue, an arch, a tomb, etc.

纪念碑；纪念坊

Any act or production which serves as a memorial of person or an event.

纪念品；纪念物。

Striking and lasting example or instance.

突出而能经久之物。

Any work of lasting significance.

不朽的作品。