Hundreds of thousands of people protesting Donald Trump’s presidency swarmed events in U.S. cities and around the world in a rebuke to an incoming president unlike any seen in modern times.

In the nation’s capital, marchers jammed city streets and filled the large swath of parkland between the U.S. Capitol and the White House known as the National Mall.

Organizers expected 200,000 people, but officials were prepared for at least twice that many – The city’s public transit service, the Washington Metropolitan Area Transit Authority, recorded about 275,000 trips as of 11 a.m. Saturday, more than the 193,000 it recorded by 11 a.m. Friday ahead of Trump’s inauguration speech and parade.

The huge crowd comes a day after empty space was spotted on the National Mall ahead of Trump’s inauguration speech and bare bleachers were noticeable along the inaugural parade route. Officials estimated about 900,000 people would file into D.C. for Friday’s parade and speech. That’s about half the attendance at former President Obama’s 2009 swearing-in, the largest event in the history of the nation’s capital.

At a train station blocks from the White House on Saturday, trains filled with participants would stop, but there was no room for passengers. Finally, after three trains went by, a USA TODAY reporter was able to squeeze on.