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Antonio's Pizza by the Slice has operated on Thayer Street since 1991, running a counter-service operation where you order from a constantly rotating display case. The menu spans straightforward cheese and familiar combinations—chicken bacon ranch, pesto, taco—alongside more inventive options like tortellini pizza and truffle-loaded tater tot pizza, which swept Providence Pizza Week 2024 in the categories of Most Delicious, Most Creative, and Most Instagrammable. The slice selection shifts throughout the day based on what's hot behind the glass. This is one of ten Antonio's locations across Massachusetts and Rhode Island, each with its own neighborhood character. The chain runs a standing Wednesday promotion of $3 slices all day.