Durango City (officially "Victoria de Durango") is a small city in northern-central Mexico. My wife was born there, so I've had the opportunity to visit every so often.
In the historical centre (i.e. downtown) of the city, there's a "Plaza de Armas" that serves the purpose of a city square of sorts. These photographs are from our last visit, in mid-December of 2017.
Like most of the country, and particularly the "folklore" driven parts, it's heavily influenced by a religion-centered legacy. Thus, the cathedral is placed next to the city centre -even closer than the government office.
Adjacent to the Plaza de Armas, you'll find "Corredor Constitucion", a recently remodeled pedestrian-oriented street surrounded by trendy-ish businesses. Beautiful for a stroll, or scavenging a place for cheap and yummy breakfast.
Durango used to have a lot of crime activity and drug-related violence. This last visit, though, I perceived as a very peaceful place. Whilst admittedly not as tourism-friendly like Mexico City or some coastal destinations, I think it's a good candidate for exploring colonial Mexico.