Where am I ?

I've read and also experienced by myself that signage is rare in Costa Rica but in Alajuela the first and only street sign I found was

So clear, it means Calle 7 :-)

Even the inhabitants aren't sure about the street name. For example I asked to a woman who was sweeping  the balcony:
What is this street ? Calle 7 or Calle 9 ?
Trust me she answered me after wavering and without  any confidence: Calle 7. Ok, she is over 60 years old but it doesn't matter because another girl (about 30 years old) who was walking in the same street didn't know!!!

Is it all ? No, the houses also don't have any id !!!

Fortunately, I know where I am now. Cheers !!! :-)