The crowds lined Fifth Avenue in midtown Manhattan Thursday, hoping to catch a glimpse of Pope Francis on his first-ever trip to the Big Apple.

With only a couple of hundred people invited inside St. Patrick's Cathedral for the evening vespers with the Pope, the thousands of faithful, well-wishers, tourists and the otherwise curious had a chance to at least see the papal motorcade.

For some a few blocks north of the cathedral, though, they had to settle for Donald Trump.

Not one to be upstaged, the Republican presidential candidate was seen waving from a balcony near the top of the 58-story Trump Tower.

In an unscripted move, Trump came down to earth to wave and thumbs-up a crowd that wasn't really there to see him.

But there was already a buzz surrounding Pope Francis and Donald Trump.

In addressing a joint meeting of Congress earlier in the day, the Pope challenged politicians to reject a "mind-set of hostility," saying "we, the people of this continent, are not fearful of foreigners, because most of us were once foreigners. I say this to you as the son of immigrants, knowing that so many of you are also descended from immigrants."

Trump has been outspoken on the issue of immigration, leading some pundits to claim the comments were a veiled shot a Trump:

Gov. Andrew Cuomo, Sen. Chuck Schumer and New York Mayor Bill de Blasio greeted Pope Francis at the cathedral. Fellow candidates Sen. Bernie Sanders, Sen. Marco Rubio, Sen. Ted Cruz, Sen. Lindsey Graham, Gov. Chris Christie and Ben Carson attended the joint meeting of congress where Pope Francis spoke earlier on Thursday.