You’ll finally get down to earth, like the balloon did.
I think I got it.
VFU?
Soo close…
Why do I get the feeling that you are more interested in following the blonde than letting us guess the place? 
I think that is another blonde
ZFU?
I has to be it! 
Why do you think the U is in the back…?
Cause I can’t see any other letter there…
Just look at the top right corner of the second image and you’ll find the answer to your prayers…
Finally… now it should be RickRolling down the hill from here.
The International UFO Museum and Research Center？
Njet
How about the Evoluon in Eindhoven?
The first one was a better guess…
It’s not a famous place, more like a trashy joint for SciFi nerds
Museum of Pop Culture in Seattle?
Your first guess was much much closer
Thematically or geographically?
Both, you were almost there, actually