Wondering what those quirky metal bars on windows are? Learn about window belly bars and why they're more than just a trend!

Walking around a city (particularly one with a lot of older buildings), you might notice window grills that curve at the bottom. Here's why that curve exists.

But he was once a child like me, fascinated with those strange window structures in his hometown in India. He remembers watching his family members peer through the “belly bar grille ...