Mexico City

1. Mexico City is built on top of an ancient lake bed, which causes the city to sink approximately 10 inches (25 cm) every year, leading to unique challenges in urban planning and infrastructure. 2. The city is home to the largest and oldest open-air market in the world, La Merced, which spans over 100,000 square meters and offers an incredible variety of goods, from fresh produce to handmade crafts. 3. Mexico City boasts more museums than any other city in the world, with over 150 museums that cover a wide range of topics, including art, history, and even the history of chocolate.