White Tower Hamburger, 1933.

White Tower Hamburger was a chain of fast food restaurants created as a copycat or imitator (if we are being generous) of White Castle. Founded in Milwaukee in 1926, they hired away White Castle employees, barely tweaked the chain's slogan, and mimicked the crenellated building design. By the 1950s White Tower had more than 250 locations all across the country., largely in urban areas. Despite the inevitable copyright lawsuit, the last batch of original White Towers remained in business through the 1980s. (A single location is still open in Toledo, Ohio, though it is long divorced from the original owners).

New York City was home to at least a half a dozen White Tower Hamburger locations. This castle-like building at Broadway and West 167th Street is no longer extant, but at least one original White Tower building remains in Woodside, Queens.