Source: Wikipedia
Look at a map of the Amazon and something is missing, though it takes a moment to notice. The river runs roughly 4,000 miles from the Andes to the…
The Colosseum is the most recognizable building surviving from the ancient world, and one specific claim about it has proved unusually durable: that the Romans filled it with water and…
Most people picture the Panama Canal as a ditch: a channel cut through the isthmus, joining two oceans, with ships sailing along it. That picture is wrong in a specific…
Bridges are the most public form of engineering there is: you can see the whole argument at once, and you find out immediately whether it worked. These fourteen are worth…
The Leaning Tower of Pisa is the freestanding bell tower of Pisa Cathedral, standing in the Piazza dei Miracoli in Tuscany. It draws millions of visitors a year, almost all…
Source: Wikipedia
On a remote, windswept stretch of Arctic tundra in the far north of Russia, near the border with Norway, there sits a rusted metal cap bolted over a hole…