From Geek Sugar via Amanda B.:
Foursquare studied 1.5 billion check-ins and determined which cities were the most romantic, based on check-ins to places deemed “romantic” for couples, like French restaurants, wine bars, flower shops, and lingerie boutiques.
The winners are:
1. Lake Buena Vista, FL.
2. Napa, CA.
3. Venice, CA.
4. Saint Louis, MO.
5. New York, NY.
6. San Francisco, CA.
7. Reston, VA.
8. Beverly Hills, CA.
9. Myrtle Beach, SC.
10. Key West, FL.