Pretty impressive sight, as they were flying very low, and in close formation.
Part of me cannot help wondering, though, how sensible it is to make these flights over densely populated urban areas. These are very old planes, designed at a time when our technology was less advanced and safety priorities were skewed by the necessities of war. Flying so close and low, there can't be much time to react is anything goes wrong, and the consequences of an accident could be catastrophic.
Am I way off the mark here?