Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

One of the largest underground systems runs under Canada's largest urban center.

This unusual structure may be on its way to becoming a cultural landmark in Toronto.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

This massive, ancient stone was disassembled and then put back together again.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

Lost subway station nestled beneath Toronto's busy commuter line.

This Toronto garden collects stares and tchotchkes in equal measure.

A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

Jesus' footprints and the first catacombs in the world.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

2300-year-old Roman road connecting the empire.