The Source - RiNo

This place is one hell of a way to make a whole day or evening out of your date. They house tons of vendors under one roof and are open til 11pm. You can eat in their restaurants (Acorn/Yacht Club), browse for art and shop for everything from hard to find liquor/beer to baked goods and specialty groceries all in one stop. Totally worth the quick drive and they have tons of parking.
http://thesourcedenver.com