He was greeted by a giant American flag, which had been unfurled moments before his arrival by fire and rescue workers from the five-story building's roof.
Thousands of indigenous people arrived in the capital on Thursday carrying a giant rainbow flag, having marched for two weeks from the Amazon rainforest town of El Pangui.
And a giant England flag which, folded up, takes eight people to carry and is too big to fit through stadium turnstiles, is being taken to Germany by a group of fans keen to show pride in their country.