Inside an abandoned Burger King in Concord Mall, Wilmington, DelawareCourtesy of Tom Dahlke.
I tried the biggest burgers at McDonald's, Wendy's, Burger King, In-N-Out, and Shake Shack.Erin McDowell/Insider; NYC Russ/Shutterstock; Savvapanf Photo/Shutterstock; rafapress/Shutterstock.
The plant-based Burger King restaurant in London's Leicester Square.Abby Wallace/Insider.
Photo by Semen Vasileyev/Anadolu Agency via Getty Images).
Hollis Johnson.
Double cheeseburgers from In-N-Out, Whataburger, and P. Terry's.Erin McDowell/Insider; NYC Russ/Shutterstock.
I tried every breakfast sandwich I could order from my local Burger King locations.Savanna Swain-Wilson.
Mary Meisenzahl/Insider BENOIT TESSIER/Reuters.