BlogTO has a rundown of secrety secrets that dwell beneath the city streets in Toronto, including a Gringott's-like vault of fabulous riches:
Things You Didn't Know Were Underground in Toronto - BlogTO

BlogTO has a rundown of secrety secrets that dwell beneath the city streets in Toronto, including a Gringott's-like vault of fabulous riches:
Things You Didn't Know Were Underground in Toronto - BlogTO