In 1830, Antica Pizzeria Port'Alba was opened in Naples. Most historians consider this to be the world's first pizzeria. It became a meeting place for artists, students or others with little money so, in most cases, the pizza was simple.

Antica Pizzeria Port'Alba is a pizzeria in Naples, Italy, which is widely believed to be the world's first pizzeria.

1. 10 by Diego Vitagliano Pizzeria – Naples, Italy. Still holding the number one position for the last couple of years, it's no surprise that the best pizza on the planet hails from Naples. After all, it is the birthplace of the world's favourite dish.

The average profit margin for a pizzeria can vary widely based on factors such as location, business size, efficiency, and pricing strategy. However, as a general guideline, the average profit margin for a pizzeria typically falls within the range of 7% to 20%.