In New York, huge crowds gathered in Central Park to see him yesterday – especially at Ground Zero.
The pontiff also held a special mass for thousands at Madison Square Garden last night.
Meanwhile, Pope Francis has sent a special message to those attending the National Eucharistic Congress which opens this morning in Knock County Mayo.
Thousands are expected to attend the two-day celebration of faith on the theme of Christ Our Hope.
His Holiness says he wants pilgrims to seek to build a world that is ever more just.
