What are the historical legends in Moscow?

According to the legend of the rose, it is said that after the Russian emperor Nicholas I ascended the throne in 1825, he sent a general to escort his mother Maria Fedoroff back to the palace (now Pushkin City). Then the general went nearby and saw a sentry with a gun standing by the road, but the place he guarded was empty. The general was very surprised. He asked all the officials, but no one could make it clear, only that it was a rule of court etiquette. Later, he learned in St. Petersburg that the sentries in the Royal Garden had been set up for 50 years. The basis for setting up posts is a paper order to "set up a sentry at 500 steps outside the East Wing". Every time the general came to Huangcun, he would visit this mysterious sentry post, and courtiers and even the queen herself were very interested in it. The secret of setting up a post finally came out. It turned out that Queen Catherine II was the first to order the establishment of posts. In those days, the queen often walked in the garden. One day, she found a blooming rose, beautiful and moving, and wanted to leave it to one of her grandchildren. So she ordered a guard to be set up beside the flowers to avoid being picked by others. But the next day, she forgot all about it, and the sentry watched it year after year. After the queen's death, of course, the rose bushes had already withered, but the sentries kept rotating in the same place.