[fnordpiglet]

Another colonial era street, which actually still exists, is Stone St. It was bisected by the construction of 85 Broad street, which was built on top of stone street. However the street actually continues THROUGH the lobby, which is the original cobble stones, and is still a public space (although you have to go through security to travel the original street). There are excellent bars and restaurants on the outdoor parts of the original stone street.

https://en.m.wikipedia.org/wiki/Stone_Street_(Manhattan)

[greenyoda]

The most prominent example of a colonial era street is Broadway, whose path predates Manhattan's rectangular street grid, and thus cuts diagonally across many streets.

> Broadway was originally the Wickquasgeck trail, carved into the brush of Manhattan by its Native American inhabitants. This trail originally snaked through swamps and rocks along the length of Manhattan Island.

> Upon the arrival of the Dutch, the trail was widened and soon became the main road through the island from Nieuw Amsterdam at the southern tip. The Dutch explorer and entrepreneur David Pietersz. de Vries gives the first mention of it in his journal for the year 1642...

https://en.wikipedia.org/wiki/Broadway_(Manhattan)#Colonial_...

The historic Flatiron Building, at the intersection of Broadway and Fifth Avenue, has a triangular footprint.

https://en.wikipedia.org/wiki/Flatiron_Building