If your flooring is in need of a refresh, you can’t beat the versatility of tile, especially in high-traffic areas like the bathroom, kitchen, and basement. But before you decide to roll up your ...

One of the oldest and simplest problems in geometry has caught mathematicians off guard—and not for the first time. Since antiquity, artists and geometers have wondered how shapes can tile the entire ...

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Metro, the subway system serving Washington, D.C., has a distinctive look. Underground stations resemble immense, minimalist concrete bunkers. The tiles covering the floors are six-sided—large, terra ...