Karlův most - Stavba pilíře a klenebního pole ve 14. století

Building of the bridge in the late medieval times
from Medieval History Book https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DnJgD6gyi0Wk%26feature%3Demb_title&h=AT0_PKoddyfMny-q8SAMdSPi8SI1Vs-bbmstY-417KzcRuf0dxOO5MfzmtJ4tDiyGSStBrk6TvZiapOsijBZ2avvLJUypR0s69V9bpnnPMk-4OOtg_BMFW_Gf__ilvel&s=1
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