Donald Trump's inauguration: By the numbers

In just a few hours, President-elect Donald Trump will be sworn in as the 45th president of the United States - on the steps of the Capitol Building in Washington, D.C. The eyes of the world will be on Trump as he takes the customary Oath of Office, and offers his inaugural address. In the run up to the prestigious main event, we have all the must-know details of the inauguration - by the numbers.