Is there any possible way Las Vegas could not be on our "best nightlife" list? The only way we could possibly omit it is on a technicality—since you can do pretty much anything 24/7 in Vegas, it might be wrong to call it "nightlife."

San Diego embodies laid-back California culture, complete with a Boardwalk, surfing communities, and outstanding Mexican food. Breathe in the fresh ocean air at Sunset Cliffs Natural Park, then gobble down a fresh fish taco at a La Jolla seafood joint. The naval aircrafts at the USS Midway Museum will have you standing at attention. A free Sunday concert at the Spreckels Organ Pavilion is the perfect way to unwind after a Saturday night bar-hop in the thumping Gaslamp Quarter.

Positioned at the eastern tip of the Costa del Sol, Nerja boasts nearly 10 miles of powdery beaches featuring activities like water skiing, scuba diving and sailing. Although tourist-oriented, it hasn't been overtaken by high-rises, and its huge promenade delivers panoramic Mediterranean views.