Charles Bridge is a national monument and considered to be one of the most beautiful bridges in the world. It connects Mala Strana with Staromestska. It replaced the even older Judith Bridge, which was destroyed several times by floods.
Legends say eggs were added to the mortar to make it strong, and it may have worked – the bridge has never been swept away again. The auspicious time of 1357, July 9th at 5:31 in the morning was chosen as the optimal moment to begin building a bridge because these numbers formed the sequence 135797531, a palindrome symbolic of a sturdy bridge. The 30 statues didn’t start appearing until 1683, the last being added as recently as 1928.
In the photo detail you can see a tourist placing the palm of her hand on the famous plaque depicting a scene of the saintly Jan of Nepomuk being unceremoniously dumped in the Vltava river by the order of King Wenceslas, due to a dispute. Allegedly he refused to reveal details of the Queen's confession, but historians have found more political reasons underlying his murder. In any event, he was canonized as a martyr and if you touch this plaque it will bring luck.
The other plaque is less touched, but depicts a dog and the scene of the confessional. Touch this and you will either have a dog some time in your life or never drown while sailing. Supposedly. The legend goes further than that – look into it if interested, and be on the look out for more statues of John – he is always the one with a wire ring halo and five stars. If you can find the spot on the right side of the bridge (when facing the Castle) where a golden double cross with five five-pointed star plaque is embedded, that is the exact spot where the murder took place.