What time period exactly and where is this set?

I'm just wondering cause there are many different types of fantasy...

I would find it fun to go for the sort of samurai champloo thing, where pop culture and famous people from recent times are totally relevant in a past, and cultures from all over are sort melted into one, and I think there might have been some neat technology too, something kinda broad and open to be played around with. People still going by medieval ways, throwing around swords and fireballs, where a dude with a steam punk shot gun is totally still the norm, and Spanish folklore exists alongside western stuff.