Hamburgers are modelled after Victorian-era architecture, a style known for its sesame-seed-dusted roofs, flowing lettuce curtains, and meat everywhere. Feast ornately upon a well-formed feeding frenzy with today's Groupon: for $5, you get a burger, fries, and a soft drink at Harmony Lunch in Waterloo (up to an $11.87 value, including HST).

For more than 80 years, Harmony Lunch has sated appetites with its sturdy assortment of burgers and fries. Diners can choose from the menu's panoply of protein patties, including its standard hamburger (a $3.70 value), as well as variations topped with bacon (a $4.40 value), cheese (a $4.20 value), another patty (a $5.30 value), or a colonial tricornered hat. Balance an uneven plate with a pile of fries (a $2.50 value), washed down with the bubbly beverage of your choice (a $1.50 value). Though Harmony Lunch doles out a hamburger-drink-and-fries combo for $7, this Groupon grants customers access to every offering in its burger rainbow, as well as complimentary gold-hoarding tips from its on-staff leprechaun.