People riding bicycles in Mexico City, Mexico. Credit: Gautier Houba/Travel + Leisure With beautiful tree-lined streets, delicious food, and stunning architecture, it’s easy to see why travelers flock to Mexico City. However, due to the recent cartel violence that’s impacted portions of Mexico, anyone heading to the destination may understandably be wary of an upcoming trip. According to the U.S. State Department, Mexico City is categorized as a Level 2 advisory, which encourages travelers to “exercise increased caution.” For everyday visitors, this means the government is not restricting or prohibiting travel and isn't discouraging travelers from visiting. But even with a lower-tier travel advisory, as the warnings could go up to a Level 4, travelers should navigate the city carefully when enjoying the sights and culture. “There is a risk of violence in the state from terrorist groups, cartels, gangs and criminal organizations,” the State Department states.…