It's official: Donald Trump is the most powerful man on earth.
The 45th president of the United States was sworn in on Friday in Washington, D.C., as outgoing president Barack Obama looked on.
But it seems the turnout was much smaller at Trump's inauguration than Obama's first swearing-in ceremony in 2009, which drew in 1.8 million people.
Photos comparing the two events show a fairly significant difference in attendance, with sizable portions of the National Mall relatively sparse during Trump's ceremony.
Another possible indicator is public transit ridership. The city's Metro tweeted there were 193,000 trips taken as of 11 a.m. on Friday, compared to more than 500,000 at the same hour on Jan. 20, 2009.
Check out the slideshow below for more photos comparing Obama and Trump's inaugurations:
