знаменитой

знаменитой

Famous.

Here, "знаменита" is the feminine past tense short form of the adjective "знаменитый," describing someone's reputation or fame.

Она была знаменита своей живописью.

She was famous for her painting.

Here, "знаменитых" is in its masculine plural form, modifying "памятников," indicating the high level of recognition of the monuments.

Это один из самых знаменитых памятников в стране.

This is one of the most famous monuments in the country.

Here, "знаменитой" is in its feminine singular instrumental form, used with the action of dedication to the ballerina.

Я посетил музей, посвящённый знаменитой балерине.

I visited a museum dedicated to a famous ballerina.