#5:

Ponyo and Sosuke- Sosuke's love for Ponyo makes her human!
#4:

Scott Pilgrim and Ramona Flowers- for the slightly messier modern romance
#3:

Gustav Klimt's
The Kiss- a two dimensional realization of pure bliss
#2:

Psyche Revived by Cupid's Kiss, by Antonio Canova- the original sleeping beauty and my all time favorite sculpture (someday i will see it in person!)
#1:

Amelie Poulain and Nino Quincampoix- as far as I'm concerned, the most romantic movie and beautiful kiss of all time!
Happy Valentine's Day, kiss someone you care about!