On Grand Street, the Banh Mi Saigon Vietnamese sandwich shop sits just past the Baz Bagel and Restaurant, which serves $14 bagels with Nova and scallion cream cheese. Down the road stands the Industrial and Commercial Bank of China.

This is Little Italy in Manhattan. Or what’s left of it.

Once home to thousands of Italians and Italian-Americans, Little Italy has long since shrunk to a name on a street map and — at most — a three-block stretch of red-sauce joints on Mulberry Street patronized almost entirely by tourists. For every handful of Italian restaurants, there is at least one souvenir shop stocked with I ♥ New York T-shirts, Yankee ski caps and kitschy New York license plates that read “Bada Bing,” “Fuhgeddaboudit” or “Donald Trump.”

On Saturday morning, the old heart of the neighborhood took another hit when a fire broke out at Angelo’s of Mulberry St., said to be the oldest Italian restaurant in the area. Damage from the blaze — caused by “accidental, careless discard of smoking materials,” the Fire Department said — is expected to keep the restaurant shuttered for months.

“Angelo’s was the best one,” said Gustavo Fernandez, who works at another Italian restaurant on the same stretch of Mulberry Street. “But I’m a New Yorker; I don’t come to this neighborhood to eat.”