Follow the white rabbit 4/4

This information seems to be wrong, we need a last effort for you to identify the real place of this meeting. It seems that they wanted to dupe us! Find the name of the street behind our two companions at the time of the photograph.
Flag : ECTF{Name_of_the_street}

By zooming in we can read a number on the street lamp, we can find online that Prague street lamps can be used to identify a precise location in order to quickly contact the Police or the Firefighter in case of an emergency by giving this number.

So we used it on Praha street lamps to find the exact location of that picture.

Here we go, we now have the exact location of that photo ! And we can even confirm it using street view :

So our flag is the name of the street behind our photograph

ECTF{Chopinova}