How many places can you think of where you can see two (or more!) of the same business? At ground level.
One of the first places that comes to mind is probably McDonald's, since they're like, everywhere. Many roadgeeks can likely think of a location where you can spot two high-mast signs between freeway exits. At one time, at the I-70/I-75 interchange, it was possible to see arches at the Vandalia exit to the north, and the Huber Heights exit to the east; not sure if you still can due to tree growth and construction.
A puzzling example is in Severna Park, MD, where there are two McD's on opposite sides of Ritchie Highway (MD-2) and less than a mile downfield. One is actually on Baltimore-Annapolis Rd (MD-648), but just about at the corner.
https://www.google.com/maps/search/mcdonald's/@39.0789677,-76.5490213,919m/data=!3m1!1e3This can sometimes happen with gas stations. In Rockville, MD, there are two Shell stations almost right across MD-355 (Rockville Pike) from each other. There used to be a third Shell directly across sidestreet Rollins Ave. from the northernmost one, but that was demolished and replaced with stores.
https://www.google.com/maps/@39.0581613,-77.1214177,243m/data=!3m1!1e3I seem to recall this also happened in Port Washington, NY, on Long Island, where there were 2 Getty stations across a sidestreet from each other on PW Blvd (NY-101). One is now a lube place, and the other is an Exxon (with the sign awkwardly squeezed into a Getty frame).
https://goo.gl/maps/49yzqV2cEZ52In New Jersey, there were two Exxon stations on opposite sides of Route 33 near the turnpike. Both were around since Esso days. One was in the gore area where Monmouth St. used to branch off and has been gone for some time (possibly due to the construction of NJ-133). The other was at the corner of Milford Rd., and was only demolished recently -- specifically to make way for the relocation of Interchange 8 on the pike.
The award has to go to 7-Eleven, in Manassas, VA, where there are two stores
right next door! Granted, one is a classic 7-11 with the gabled roof, while the other is a modern gas station setup with the c-store in the middle and a roof over everything. Yet they both seem to stay in business. (There used to be a third one just down the street, but that's now a AAA service center.)
https://goo.gl/maps/NsJwKD6tEUqOne of the Shrek movies parodied this with Starbucks. When there was some disturbance, all the customers ran screaming out of one "Farbucks" shop, and race into another one right across the street. I'm not sure that I've seen this, though; what I have noticed is multiple stores in close proximity that sell Starbucks coffee and have exterior signs indicating such, but only one, if any, is a dedicated Starbucks.
(Apologies if this thread was done before, but I did a search and could not find.)