Monument (noun)

1. A statue, building, or other structure erected to commemorate a notable person or event.
2. Something serving as a lasting reminder of a person or event.
3. A large tombstone or grave marker.

Origin:

Middle english: from old french monument, from latin monumentum, from monere "warn, remind".

Examples:

1. The Washington Monument is a tall stone structure in Washington D.C.
2. The monument to the fallen soldiers was unveiled on Armistice Day.
3. The Great Wall of China is a monumental feat of engineering.
4. The book is a monument to the author's research and dedication.
5. The famous statue of Christ the Redeemer in Brazil is a well-known monument.