VIDEO: Scottish crowds thrilled by Queen's visit

Jubilant crowds cheered on Wednesday as Queen Elizabeth II opened a railway line in Scotland, on the day she became Britain's longest-reigning monarch.

In remarks at the inauguration of the new train route in the Scottish borders region, the Queen thanked well-wishers for their "touching messages of great kindness."

Simon Perry of People magazine praised what he described as the Queen's understated approach to her landmark achievement.

Spectators were visibly thrilled by the experience of seeing the monarch.