OCW
How to attack (and defend) a medieval castle
Medieval European castles weren’t just for passive defense and withstanding enemy onslaughts; they were symbols of power, private residences, and hubs of governance. Castles regularly served as bases for launching attacks and as a way to control local populations. So, how were these formidable for..
TED
Inside Dubai's mission to build the city of the future
What does it look like when a city becomes a laboratory for innovation? His Excellency Khalfan Belhoul, CEO of the Dubai Future Foundation, explains why Dubai is cutting the bureaucratic red tape to experiment with big ideas in everything from AI and emerging tech to finance and climate solutions. T..
TED
Inside Dubai's mission to build the city of the future
What does it look like when a city becomes a laboratory for innovation? His Excellency Khalfan Belhoul, CEO of the Dubai Future Foundation, explains why Dubai is cutting the bureaucratic red tape to experiment with big ideas in everything from AI and emerging tech to finance and climate solutions. T..
TED
The incredible engineering of Venice
To escape Germanic invaders, people fled into the Venetian Lagoon in the 6th century. The settlers set out to tame the mudflats and built a foundation in the marshy maze to support heavier, longer-lasting structures. Little did they know, this system of wood, water, and mud would still be supporting..
TED
Reimagining traditional architecture for modern needs
Architect Riyad Joucka believes your home should be a mirror of who you are. Using 3D printing and ancient architectural wisdom, he's designing efficient, personal homes that respond to context, climate and culture without sacrificing character. He makes the case that we should start designing ..
TED
The haunting history of the Paris Catacombs
For centuries, Parisians had buried their dead in the Cemetery of the Innocents. By the 18th century, the grounds had become overcrowded — spewing foul odors across the city. Residents worried that it posed a public health threat, and petitioned the government for a solution. But where could they ..
TED
