Both the steps and the Piazza got their name
from the Spanish Embassy which I believe is located in the piazza.
If you come here in the summer the stairs are divided by rows of
flowers. The beautiful church of Trinita dei Monti lies at the top
of the stairs. At the bottom of the stairs is the Fontana della
Barcaccia (Fountain of the old boat) by Pietro Bernini. This place
is a gathering spot for tourists, with people sitting on the steps
and watching the other (tourists :-) ) go by.
