Saturday's Pi Day is bringing some sweet deals on everyone's favorite round treats across the Outer Banks. Local pizza joints and bakeries are rolling out special discounts to celebrate the mathematical holiday that honors the number 3.14159 and all things circular. While the original article didn't specify which OBX establishments are participating, Pi Day has become a popular promotional opportunity for restaurants and dessert shops throughout the area. Many businesses typically offer percentage discounts that play on the pi theme, like 31.4% off pizzas or $3.14 personal pies. If you're planning to grab some discounted pizza or pie this Saturday, it's worth calling your favorite local spots to see what deals they might be offering. Some places announce their Pi Day specials on social media, while others surprise customers with walk-in promotions throughout the day.