What would it be?

If your house was burning down and you only had time to save one thing, what would it be?

Maybe most of you have heard of the similar question before,
but do you still remember what your answer was at that time?
I guess, different answers will pop up in your mind at your different periods.
The answer you said last year may probably have different value to you now.
For me, I still remember few years ago,
my answer was my photo albums
because those were my memories which i couldn't create it again.
However, due to the technology nowadays,
those photos can be posted on the internet,
that means they can be downloaded again everywhere and everytime.
Those photo albums are then not that valuable anymore.
Thus, I re-think this question again.
This time, it took me so long to think for the answer and still,
I couldn't find the answer.
Seems like everything in my house can be bought again with money.
I mean my home in Hong Kong.
However, for the house I'm living now,
one thing quickly jumps into my mind.
It's my passport!
I cannot lose it or else it's probably going to cause me a lot of troubles!
How about you?