Look Closely at the Wall Prague

What is that?

Michal from Prague

About me I am a chemist (PhD, DSc, etc.), semi-retired, trying to make it as a photographer. Born in Prague, with about 20 years in US, I'm now back in Prague almost full time. Why Prague I have traveled the world quite a bit (never been to Antarctica) but Prague is so unique that I was always excited to come back here. There is a plethora of places where tourists will alw...
"You've walked over the Charles bridge in Prague -- If you look closely at the wall at the gate on the Malá strana side, you'll notice some weird slots..."

Well, I am sure you have already walked over the Charles bridge (Karluv most). But maybe you passed very quickly through the gate on the Malá strana side. You should stop there for a minute and try to figure out what these slots on the wall are. Why are they here? You know I am a technical guy so these things intrigue me. So if you want to solve this for yourself, do not read further and try to guess what it is...

In the medieval times, there was a guard standing right here with his back to the wall. And he was equipped with a halberd (just in case you never heard about it), a sword and a knife. And he was bored most of the time. And the tower is made of sandstone. And to kill his time, here he was sharpening his tools by grinding them on the stone, not thinking about the poor tourists a couple centuries later trying to find out what was happening here...

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Prague Spotter Michal

About me I am a chemist (PhD, DSc, etc.), semi-retired, trying to make it as a photographer. Born in Prague, with about 20 years in US, I'm now back in Prague almost full time. Why Prague I have traveled the world quite a bit (never been to Antarctica) but Prague is so unique that I was always excited to come back here. There is a plethora of places where tourists will always congregate, but you can find beautiful places worth visiting which are not mentioned in books by Lonely Planet, and where you will enjoy being without too many people taking selfies. ...

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Oct 16, 2025

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