1) Appealing 2) Attractive 3) Beguiling 4) Captivating 5) Cherished 6) Etched on your mind 7) Extraordinary 8) French word used in English 9) Haunting 10) Impressive 11) Likeable 12) Not to be forgotten 13) Popular 14) Remarkable 15) Treasured 16) Unforgettable 17) Worth remembering 1) Historic 2) Lingering 3) Nameable 4) Recognizable 5) Redletter 6) Unforgettable 
• (a.) Worthy to be remembered; very important or remarkable.
Mem'o·ra·ble adjective [ Latin memorabilis , from memorare to bring to remembrance, from memor mindful, remembering. See Memory , and confer Memorabilia .] Worthy to be remembered; very important or remarkable. -- 
[adj] - worth remembering