In New Orleans, Spanish influence is inevitable for two reasons.
One reason is that the city was historically owned by Spain for over 40 years, as seen on many plaques on the corner of streets in the French Quarter, along with some early Spanish settlements in the area:
Another reason is the current influx of Latinos in the city, as seen by products and signs in Spanish:
Some prominent examples can be seen in:
Street signs
Spanish Plaza
The Cabildo
And of course, Los IsleƱos