u/Riemann-Hypothesizer

This is Château de Pierrefonds in northern France.

Originally built in the 12th century, the castle was heavily restored in the 19th century. While much of what we see today is a reconstruction, it still stands on the original medieval foundations and gives a powerful impression of how grand these fortresses once were.

Would you rather see castles in their ruined state or beautifully restored like this?

This is the Castillo de Alburquerque, located in Badajoz, Extremadura, Spain.

Built on top of a steep rocky hill, its location alone made it extremely difficult to assault. The castle’s elevated position gave defenders a massive advantage, which is why it was considered one of the strongest fortresses in the region during the Middle Ages.

Would you attack this castle… or just admire it from below?

Castles often have some really clever defensive designs, whether it’s multiple layers of walls, hidden passages, murder holes, or strategic locations.

Beaumaris Castle was built in the late 13th century and is considered one of the finest examples of a concentric castle. It has multiple layers of walls, towers, and defensive features designed to make it extremely difficult to attack.

This is a section of Trajan’s Column in Rome, carved around 113 AD. It shows Roman soldiers building fortifications during the Dacian Wars.

Looking at some of their structures, it’s hard to understand how they managed to build on this scale with the technology they had at the time.

The Romans were incredibly organized, from managing legions across huge distances to building complex infrastructure and handling administration across the empire.

If they had something like AI that could help with planning, logistics, research, or finding specialists quickly, what do you think would have been the biggest use for them?