City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

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

A historic Montreal market that was the city's agricultural hub for over century.

Every year, the colorful murals of Montreal get a complete makeover.

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

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Two thirds of this Montreal neon icon has survived to flash another day.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

Four cars from the old system were once on display, but were removed in 2014.

An aptly-named street near the birthplace of the modern LGBT rights movement.

These sculptures were designed to beautify this neighborhood when it was established in the 1940s.

The only subway station in the city that still makes use of gap fillers.

A touching tribute to the "Queen of Soul."

The longest step street in the city.

A small graveyard is hidden in the midst of a bustling university campus.

Home to a dizzying array of letterpress blocks with a rich history.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

The graveyard holds the remains of Irish immigrants who arrived in Queens after fleeing the Great Famine.

New York's southernmost subway station is whimsically wavy.

The home of the first American-born saint is one of the only curved buildings in New York.

This slender three-story building has also had several famous residents.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.