If your trip to Sumpango is all sorted out but your itinerary is a bit on the empty side, let us give you a few hints and tips.There's nothing more enjoyable than discovering new places. While you're staying in town, La Merced Church and Casa K'Ojom Museum of Mayan Music should be among them. If you still have tons of stamina and space on that travel itinerary, Colegio de San Jerónimo is also calling your name.