Have you ever thought that some places in WoW are similar to the city, town or overall area you live in? It may be the environment, or the architecture, or just the atmosphere that makes you feel a certain deja vu in some game zones.
I personally found Suramar City to be very reminiscent of my home Saint Petersburg. It is also a port city, so it has a lot of canals, and overall has a very marine feel. It also has a similar Baroque/neoclassical architecture, which makes sense considering Highborne buildings are very Classical-inspired. Even its layout is very similar: a semicircle facing the sea with a small island off the coast (Nighthold). It also has the country's largest drug addict population.
As for the area around Saint Petersburg, it is kind of similar to a mix between the Howling Fjord (the forests and the cold weather) and the Tirisfal Glades or Gilneas (the cloudiness, the gloomy atmosphere). A dark but beautiful area.