This challenge is serach what name challenge picture tower is.
I serched pictures tower at [Google images](https://www.google.com/imghp?hl=en).
I find [Eben_Ezer](https://en.wikipedia.org/wiki/Eben-Ezer_Tower) this is flag.No captcha required for preview. Please, do not write just a link to original writeup here.

Original writeup (https://312k.github.io/312k-blog/post/post6/brixelctf-312k-eng/).