Blog
Blog.
Essays, notes, and the history behind the moments we render.
Essays
Recent posts
Essay
Standing where they stood
Most of what we mean by 'historic' is geometry, not events. An essay on why standing in the same column of space is the only honest form of time travel, and what it tells us about the rest of the way we look at the past.
Essay
What Did Pompeii Look Like Before Vesuvius Erupted?
We remember Pompeii as a city of grey ash and plaster casts. On the morning it died in 79 AD, it was a loud, brightly painted, prosperous Roman town. Here is the living city beneath the ruin.
Essay
What Did the Great Pyramid of Giza Look Like When It Was New?
The Great Pyramid we visit today is a stripped skeleton. When it was finished around 2560 BC, it was sheathed in polished white limestone so bright it could be seen for miles. Here is the monument the Egyptians actually built.
Essay
What Did Tenochtitlan Look Like? The Aztec Capital That Stunned the Conquistadors
When Spanish soldiers first saw Tenochtitlan in 1519, some thought they were dreaming. It was a city of a quarter of a million people built on a lake, larger than any city in Spain. Here is what they saw.
Essay
How We Reconstruct Vanished Places with AI (and Where We Refuse to Guess)
Every panorama on timemachina starts as a research note and ends as a place you can stand inside. Here is how the pipeline works, what the model does and does not invent, and the line we draw when the evidence runs out.
Essay
Games Like GeoGuessr: 7 Worth Playing in 2026
If you love the GeoGuessr puzzle of "where on Earth am I?", there is a whole genre built around the same instinct. Here are seven map and history guessing games worth your time, and what makes each one different.
Essay
What Did Constantinople Look Like in 1453?
On the eve of its fall, Constantinople was a half-empty giant: the greatest walls in the world wrapped around gardens, ruins, and the still-glittering dome of Hagia Sophia. Here is the city the last Romans defended.
Essay
What Did Ancient Rome Actually Look Like? A Walk Through the City in 120 AD
Forget the white marble ruins. At its height under Hadrian, Rome was a loud, painted, million-person city of red brick towers, gilded temples, and streets too narrow for the sun. Here is what you would have seen.
Essay
How we know what it looked like
When you see a reconstruction of a place that no longer exists, how could anyone know? An essay on the independent streams of evidence, from foundations and account books to pollen and tree rings, that have to agree before a confident line gets drawn.
Moments
Moments
The locations we render, with their history.
Moment · 1500s · PE
Sacsayhuamán, above Cusco
Around 1500, above the Inca capital of Cusco, the great terraces of Sacsayhuamán rise in zigzag walls of polygonal stone: boulders weighing over a hundred tonnes cut and fitted without mortar so tightly a knife-blade won't pass between them.
Moment · 13th century AD · FR
Mont-Saint-Michel
Around 1300, the abbey of Mont-Saint-Michel rises tier upon tier from a rocky tidal island off Normandy: a Gothic church on the summit ringed by some of the strongest tides in Europe, which turn the mount into an island twice a day.
Moment · 1953 · NP
Summit of Mount Everest
At 11:30 on 29 May 1953, the New Zealand beekeeper *Edmund Hillary* and the Nepalese Sherpa *Tenzing Norgay* stand on the 8 849-metre summit of *Mount Everest*: the first humans confirmed to reach the highest point on Earth.
Moment · 15th century AD · CN
Great Wall of China, Jinshanling
Around 1500, Ming China rebuilds the Great Wall in brick and stone across the mountain ridges north of Beijing: a battlemented rampart with watchtowers that climbs and plunges over the peaks as far as the eye can see, the most ambitious fortification ever built.