Mexico City Is Sinking Into the Lake It Drained

In 1978 an electrical crew digging behind the cathedral in downtown Mexico City hit a stone. Not a rock — a carved disk of a dismembered goddess, eight and a half tons of her, lying face up in the dirt where she’d been since before Cortés. The Templo Mayor, the ceremonial heart of the Aztec empire, had been sitting under the city center for four and a half centuries, and the city found it by accident, with a backhoe.

That’s the thing about Mexico City. It doesn’t keep its past hidden. It can’t. The past keeps coming up through the floor.

The ground won’t hold still because the city drank its own lake. When the Spanish took the place in 1521, the Aztec capital of Tenochtitlan was an island city laced through a chain of lakes. The conquerors, uneasy on all that water, started draining it, and the job ran for three centuries before the deep-drainage tunnels of the twentieth finished it. They got their dry land. They also doomed it. Drain a lakebed, pump the aquifer out from under a city of millions, and the old clay compacts and the whole thing sinks. Parts of the historic center have dropped more than twelve meters in a century — the cathedral has gone down so unevenly that you can stand inside and watch the floor tilt away from you. At the worst of it the city was sinking almost half a meter a year. Mexico City solved its flooding by slowly swallowing itself.

So how do you visit a city that’s eating itself?

Not in three days. The guidebook will sell you a long weekend — the anthropology museum, the great plaza, a day-trip out to the pyramids of Teotihuacán, Frida Kahlo’s blue house, the art-nouveau wedding cake of the Bellas Artes. Fine. But your first two days you aren’t really sightseeing, you’re acclimating: the city sits at 2,240 meters, the air is thin enough that the altitude does half your drinking for you, and your stomach is filing its own reports. Everyone who stays past a week says the same thing — that the checklist was never the point, that the city is a stack of neighborhoods each running its own logic, and that you don’t so much see it as slowly get tuned to it.

Which is why the good stuff isn’t on the list. It’s under it, or beside it, or standing in plain sight while everyone walks past.

Take the metro. In 1967, crews digging Line 2 hit another temple — a round shrine to Ehécatl, the wind god — and instead of hauling it off, they built the station around it. It’s still there, in the passage at Pino Suárez, four and a half million commuters a year streaming past an Aztec pyramid on the way to work. The same system’s map, those clean little symbols for every station, was drawn in 1969 by an American designer named Lance Wyman so that riders who couldn’t read could still find their stop. Archaeology and modernism sharing a turnstile. That’s the whole city in one transfer.

For the full stack in a single frame, go to Tlatelolco. One plaza holds Aztec ruins, a Spanish church from the 1600s, and a wall of 1960s concrete housing. They call it the Plaza of the Three Cultures, and the name undersells it, because the third culture is where the wound is. This is the ground where the last Aztec resistance fell in 1521. It is also where, on the night of October 2, 1968 — ten days before Mexico hosted the Olympics — soldiers opened fire on a student protest. The government said a few dozen died. Independent counts put it at three or four hundred. The memorial there lists no names, only the date and a line of poetry. Three cultures, three catastrophes, stacked on the exact same dirt.

The honest secrets, though, are the ones nobody put a plaque on.

In San Ángel, a cobblestone neighborhood mobbed on Saturdays and dead quiet by Tuesday, a seventeenth-century Carmelite convent keeps twelve mummies in its crypt — not embalmed, just naturally dried by the volcanic soil, resting in glass caskets since 1929. A few miles east, at the Mercado de Sonora, you can buy vegetables, a piñata, and the candles and herbs for a ritual to Santa Muerte, the folk death-saint, all in the same aisle — folk Catholicism and much older gods doing business side by side. Neither is on the highlight reel. Both tell you more about the place than the pyramids do.

And then there are the secrets the city half-keeps from itself. At the old convent of Churubusco, now a museum of foreign invasions, hangs the story of the San Patricios — several hundred mostly-Irish soldiers who deserted the invading US Army in 1847, switched sides out of Catholic loyalty, and fought for Mexico. Captured here, fifty of them were hanged, in what is still the largest mass execution in American history. The museum draws under two hundred people on a good day. Frida’s house, three kilometers off, draws that in an hour. A short walk from Frida’s, Trotsky’s house sits exactly as it was on the August afternoon in 1940 when a Soviet agent sank an ice axe into his skull — his glasses still on the desk, the papers where he left them. Mexico City was the great refuge for the last century’s exiles, and it keeps their rooms as they were.

You want the city at its most itself?

Go to Iztapalapa. Nearly two million people, a district most guidebooks won’t name, where every Easter since 1843 the neighborhood mounts the largest Passion play on earth — millions come to watch a local carry a real cross up a real hill. It is not curated for you, and that is the entire value of it. Or drink a pulque, the fermented agave the Aztecs were drinking two thousand years ago, thick and sour and impossible to sell you back home, because it starts turning within a day or two of leaving the plant. It can’t be bottled, can’t be shipped, can’t be spun into a lifestyle brand. To drink it you have to be standing exactly here. In a city bleeding its character to the nightly rental market, the one souvenir you can’t take with you might be the most honest thing in it.

Because that’s the tension running under the whole trip. Roma, Condesa, now Juárez — the pretty neighborhoods that got Mexico City voted the world’s best city three times in five years — are being hollowed out and rented by the night, the people who made them interesting priced into the colonia next door. Every traveler who “discovers” a place also, a little, wears it down. I don’t think there’s a clean way out of that, and I distrust anyone who tells you they’ve found one.

But here’s what makes this city different from Venice, that other beautiful place sinking into water. Venice embalms its past; it has turned into a museum of itself, perfectly kept and half-dead. Mexico City does the opposite. It digests its history — builds on it, cracks it open, lets the temple push back up through the cathedral floor and the skull rack surface under a downtown street, where crews recently pulled more than six hundred of them out of the old mortar. Nothing here is preserved so much as composted into the next thing. So the real question was never whether the city keeps its past. It’s whether a place this alive, sinking this fast, ever gets to choose between becoming a ruin and becoming a museum — or whether the lake it drank just quietly takes the whole thing back.