I do a lot of random road trips, and I find myself reading a lot of reviews of different hotels that I find off the highway and then searching on Google to find out when the hotel was built.
I haven't found a resource that easily shows you when a hotel was built so I put together the map (for a few interstate highways).
There's no reason to stay in a hotel that is old and dated when it takes a few minutes to find a new hotel.
1) I search on Google Maps for "hotels" and filter based on the hotel brand.
2) I search the reviews of the hotel for words like "new" or "old" to see what others are saying.
3) I also use Google Street View and look at previous dates of the location to make sure that even if the hotel says "new" that the hotel was not refurbished from a previous hotel.
4) I search on Google for any press releases or news reports of a new hotel built in the town.