Mexico City (CDMX) is a massive, vibrant metropolis where safety depends heavily on the neighborhood. Tourist-friendly areas like Roma, Condesa, Polanco, Coyoacán, and the Paseo de la Reforma are well-policed and generally safe to explore during the day and early evening. However, tourists should remain highly vigilant against pickpocketing, especially on the Metro and in the crowded Centro Histórico. Certain neighborhoods, such as Tepito, Doctores, and Iztapalapa, experience high levels of violent crime and should be strictly avoided. Never hail a cab straight off the street; always use reputable ride-sharing apps like Uber. The city is also situated in an active seismic zone, making earthquakes a significant natural risk.