Do you ever wonder how Venice seems to float on the Adriatic Sea?
Well, the entire city was built on a forest of 10 million tree trunks — over a thousand years ago... (thread) 🧵
How did one of the world's greatest cities get built on small patches of marshland in the Venetian lagoon?
By driving millions of wooden stakes deep into the clay...
The stakes go deep enough to reach firmer ground, and then a wooden base is placed on top.
Next, Istrian limestone (resistant to erosive seawater) forms a platform, on top of which entire buildings can be stably constructed.
From there, brick or stone facades rise up 3 or 4 stories.
Istrian stone was more than beautiful enough for the visible sections, but intricately-carved marble was the material of choice for the wealthy.
Why doesn't the wood rot, you ask?
Because the posts are submerged below water, where oxygen can't reach. As long as this is the case, the wood will last another thousand years — mineralization is effectively turning it to stone.
Over time, hundreds of individual islands expanded into each other, forming a city divided up by canals.
The Grand Canal cuts through as the only major waterway, crossed by just a single bridge until the 19th century.
Of the 472 bridges, the most photographed (and painted) is the Rialto — a keystone of Renaissance design.
Engineers dug more than 12,000 tree trunks into the clay banks to support it.
And 1.1 million of them were necessary to support the Santa Maria della Salute, an enormous church built to commemorate the end of the great Italian plague.
Because it all expanded organically from island to island, Venice is a far cry from your standard Roman grid plan.
But of course, this isn't a Roman city — it was founded much later...
When the Roman Empire fell apart, power concentrated in cities like Milan and Ravenna.
Venice was then a mere fishing village. It had to earn its reputation as a trading outpost, before eventually becoming its own republic in 697 AD.
On its surprisingly stable, wooden foundations, Venice built huge wealth and military might; producing a war ship a day at its peak.
But it was missing something. To be more than a commercial powerhouse, it needed religious significance...
In 828 AD, Venetian merchants visiting Muslim-controlled Alexandria stole the remains of a very important saint: Mark the Evangelist.
They hid them in a case of pork, got past the customs officials, and smuggled them to Venice.
Mark's symbol, the winged lion, quickly became Venice's emblem and now rises above St. Mark's Square.
But then they had to build a church befitting of a Gospel writer…
This was the result: St. Mark's Basilica.
Its architecture reflected the expansive reach of Venetian ships, both in its Byzantine style and the stolen artifacts adorning it.
Those marble columns were seized from all across the Mediterranean, and crusaders furnished it with even more riches in 1204 — like the bronze horses that stood at the Hippodrome of Constantinople.
Today you can see both sides of Venice.
Its humble medieval beginnings are almost unchanged, but its palazzos are infused with some of the greatest riches ever assembled in the Christian world...
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There's one very simple thing that can transform American cites and streets: trees.
So here's a case for planting a lot more of them... (thread) 🧵
When Haussmann transformed Paris into the city it is today, it involved the planting of 600,000 trees — and building wide boulevards to accommodate them.
There's a reason history's greatest city planners placed such heavy emphasis on street trees...
Beauty is the first thing. Those trees went on to inspire the Impressionists, who were just as transfixed by Paris's delicate canopies as by the architecture itself.
Michelangelo's Sistine Chapel ceiling is history's greatest artwork — but what does it actually mean?
Well, these are no ordinary Bible scenes.
And there's one key detail that everyone ignored for centuries… (thread) 🧵
Man's greatest painting was made not by a painter, but a sculptor. Michelangelo was primarily a sculptor in 1508, when the Pope twisted his arm into adorning the chapel ceiling.
He had never completed a fresco before...
That is evident in the 343 figures that look like they were "sculpted" onto the ceiling — muscular, powerful forms that borrowed from classical sculpture.
Da Vinci's Last Supper is a keystone of Christian art.
It inspired centuries of awe and speculation — over its subtle symbols and concealed messages.
But there's something hidden that nearly everyone overlooks... (thread) 🧵
Many aren't aware it's a mural, painted on the wall of a church refectory in Milan.
It's survival today is a miracle — it came inches from destruction in WW2, and has faded so much that monks once felt happy to knock through Christ's feet for a new doorway.
But what makes it such a masterpiece?
Unlike most paintings of the Last Supper, Leonardo decided against a calm dispensing of bread and wine. Instead, the Apostles reel in shock at Christ's announcement:
Reminder that Argentina was once as rich as the US and Buenos Aires was "the Paris of South America".
So what happened?
Here's how it looked — and what it teaches us... (thread) 🧵
At the turn of the 20th century, Argentina was as rich as the U.S. per capita, GDP grew 6% annually, and its beach resorts looked like this.
4 million Europeans flocked there during its Belle Époque — dreaming of being "as rich as an Argentine".
It owed its wealth to its exports (beef and wheat mainly). These peaked at ~4% of all global trade in the 1920s, and Argentina was still as rich as much of Europe as late as 1950.