For less than $2, you can take a quick funicular ride to the Pipila Monument to get this top-of-the-world view of Guanajuato, Mexico. We arrived just after sunset, when lights were flickering across the colorful city. There were people around, but the scene was quiet. Walking down the hill, we stumbled upon Casa Zuniga, a hotel run by an enthusiastic expat named Rick Zuniga. He toured us around the property's glass-walled rooms as the city was growing darker yet more luminous.