New York City
Cancun: Should we rent a car in Cancun?
I don't think so. A bus ride is 2 pesos. It makes a lot of stops so plan for that, but I thought it was worth it.
Las Vegas: What else is there to do in Las Vegas besides going out on the strip?
You can book a bus tour to the Grand Canyon, Red Rock, the Colorado River or to the Hoover Dam. Hop on the city bus to Fremont Street Experience (just north of the strip) for nightlife...