On Tuesday Britain's Queen Elizabeth made a surprise appearance at a ceremony marking the completion of a London Tube line named in her honor.
Joined by her son Edward, and Prime Minister Boris Johnson, the Queen unveiled a completion plaque at Paddington Station.
The Elizabeth Line will connect areas west of London, and will be open to the public on May 24th.
The outing marks the monarch's latest public appearance, after missing a speech in parliament last week, due to health issues.
The 24-billion-US-dollar rail project was originally scheduled to open in December 2018, but saw repeated delays due to safety testing and signaling systems issues.