One of the best ruins that I stumbled upon in Antigua was this cathedral. Looks can be deceptive here. It stands at the eastern side of the central plaza, and its whitewashed facade serves as a meeting point for lovers, day and night. During the night, the facade is illuminated, creating this eerie view.
This is how the facade looks like. You can also notice that I downloaded the latest version of Picasa, allowing me to have more creative powers with respect to editing my pictures. If you want the unedited version, feel free to ask.
If ever you find yourself in Antigua, this is one place that I definitely recommend seeing. It's just a bizarre experience wandering around the ruins in the 21st century, knowing what happened in that place several centuries before.