Paris’s map looks odd at first — the neighborhoods spiral outward like a snail shell. But that swirl hides centuries of history: city walls, expansion, Emperor Napoleon III’s redesign, and political ...

For Mr. Santos, math can also inspire ideas about structures that have already been built — a new way to see and appreciate the world. Inspired by this idea, The New York Times created a virtual tour ...

New Layer 1 blockchains are being custom-built for stablecoins. Stable, Arc, and Plasma incorporate features like fast finality and stablecoin gas fees. Emerging platforms are ...