Aerial view of the Palacio de Bellas Artes in Mexico City. Credit: Gautier Houba/Travel + Leisure A new study ranked Mexico City as the most culturally rich travel destination in the world based on its concentration of museums and galleries per visitor.The city boasts 44 art museums, 110 galleries, and standout institutions like the Museo Nacional de Antropología and Frida Kahlo’s Casa Azul.Other cities that made the list include London; Basel, Switzerland; Dublin, Ireland; and other global arts hubs. Sometimes, you want a breezy beach getaway, where all you do is sit on the warm sand and wait for the waiter to bring a fruity drink with a tiny umbrella—but sometimes the occasion calls for the exact opposite. You may want to explore a place filled with local restaurants and deep history that can take days, weeks, or many trips to fully uncover. And according to a new study by Tourlane, there's one particularly fantastic place to go for the latter.…