Why are buildings tilting in Mexico City?

Buildings in Mexico City are tilting primarily due to the city's unique geological conditions and its history of rapid urbanization. The city is built on a former lakebed, which has led to significant subsidence as the ground sinks unevenly. Additionally, poor construction practices and inadequate foundations in some structures have exacerbated the issue, making them more susceptible to tilting, especially during seismic activity. This combination of factors has raised concerns about the safety and stability of various buildings throughout the city.