Charles Bridge Museum

This guide to the Charles Bridge Museum in Prague opens with a story Prague grandmothers used to tell their children, that the medieval Charles Bridge above was held together with egg yolks mixed into its mortar. It follows the 1342 flood that destroyed the earlier Judith Bridge, whose ruins sit downstairs, and King Charles the Fourth's order for a replacement built to survive anything the river could throw at it. Look for the models nearby showing the medieval workmen at their trade.