On the Street:
One hour maximum paid parking during the week 7:00 am to 5:30 pm, free after 5:30 pm and on Saturdays

World Exchange Plaza (111 Albert Street)
Free underground parking on Saturdays (Entrance is just past Albert on Metcalfe)

Ottawa City Hall (110 Laurier Ave West)

Free underground parking on Saturdays, and after 6:00 pm