Submarine sandwiches were so named by the ocean explorers who discovered Australia's Great Barrier Beef, which was being horded by hoagie-craving sea turtles. Dive in with today’s Groupon: for $8, you get $16 worth of subs, burgers, and more at Peppi's Old Tyme Sandwich Shop. Visit any of the following Pittsburgh locations: North Side, the Strip District, downtown, and Point Breeze.

Home of the Steel City's famous "Roethlisburger" sandwich, a monster sub packed with ground beef, hot sausage, fried onions, scrambled egg, and american cheese ($7.26), Peppi’s creates a savory collection of sandwiches, from cheese steaks to burgers to chicken breasts. Scope the menu for everything from The Wiz, a 6-ounce cheese steak with grilled mushrooms and onions ($7.15), to the Santucci, “a delectably messy sandwich” with extra italian beef, cheese, and both hot and grilled peppers ($6.25). Peppi’s nestles each juicy ingredient on a springy 10-inch bed of Mike & Dave’s italian bread, which holds together the confluence of ingredients like a beaver dam manages to contain a rushing tide of nacho cheese.

While subs can be enjoyed anywhere, dining inside Peppi’s itself minimizes the rain of sausage bits from their bready home. The North Side location is a few blocks from Heinz Field and has a cozy courtyard in warm weather, and the Point Breeze location serves sandwiches in a historic 1940s diner car, ideal for meeting up with the local troupe of Harry Truman impersonators.

Reviews

Seven Yelpers give Peppi's Old Tyme Sandwich Shop's Western Avenue location a near-perfect 4.5 stars. TripAdvisors give it an average of four owl eyes and Citysearchers give it five stars:

• This is a great sub shop with an authentic Burgh vibe. Tasty sandwiches packed with the goods, walls lined up with local fanfare, and burly dudes who look like they know a thing or two about sandwiches are what make Peppi's unique. – Mercado, Yelp
• The Peppi's on Western Avenue serves up some really good food. This is the home of the famous Roethlisburger sandwich! – SRQgirl, TripAdvisor