Fun Nightlife, cool Old town
Quito is a cool place to spend a couple nights - The Mariscal offers plenty of nightlife, while the Old town city center of Quito and the city parks are cool to walk around during the day. Also be sure to visit the Teleferico to get an awesome view of the whole city.
Insider Tip:Use the EcoVia bus to get around whenever possible (the red buses) - its only 25 cents and runs through the center of the city. Also be sure to wear sunblock even when just walking around town! The high elevation and location close to the Equator makes for pretty high UV index.