If you're planning to cross the Colombian-Ecuadorian, why not also seek out the extraordinary and go to Las Lajas? Las Lajas, Colombia's most beautiful church, is a gothic cathedral close to the Colombian-Ecuadorian border that's definitely worth checking out while in the area. If you want to know how to cross the Colombian-Ecuadorian border or vice versa, plus how to get to Las Lajas, this guide has all you need to…