This is only half of a World Heritage Site, Mexico City, even though it’s on the outskirts. Frankly it’s status is controversial. To the extent that it preserves the long cultural history of floating gardens and canals, then it deserves global recognition. Unfortunately, it’s also known as a place to get drunk with friends over the weekend on one of the colorful boats above. And the city has encroached on the area, overbuilding, developing, squatting, polluting and diverting the water. So, it’s at risk. Really the damage was mostly due to the Spanish who drained the lake to build a new city over the old Aztec city, so this is one of the few places directly linked to the extensive ancient Aztec canoe and irrigation canals. A few parts are preserved, some are threatened and many are gone. Restoration is difficult and expensive, but worth it in my view.