In Takayama I also checked out 2 cafés seen in Hyouka.
Image from Episode 2 - 22m16s
Houtarou and Chitanda visits this café.
Image from Episode 2 - 22m14s
Sign on the right side of the building.
Image from Episode 3 - 00m03s
This café is called Bagpipe in real life. The insides of the café matches the anime as well, but there were tons of people inside so I didn't take any pictures.
I also saw somebody else outside Bagpipe taking Hyouka pictures.
Image from Episode 10 - 00m01s
Another café seen in Hyouka is located on the right here in Takayama's old town.
Image from Episode 10 - 00m02s
Outside the entrance. This is where Houtarou and Irisu have tea.
Image from Episode 10 - 02m22s
This place is called Kissako Katsute. I didn't get to take any pictures inside this place either, but it is supposed to match the anime as well. I've marked the path from Bagpipe to this place in the map below.
This location was visited on 2016/10/10.
Kissako Katsute official website
Special thanks to the ones who went here before: