New york sign

You're referring to the iconic "I NY" logo!

The "I NY" logo is a symbol of the City of New York, designed by Milton Glaser in 1977. It features a stylized letter "I" made up of the letters "NY" in a circular shape, with the words "I NY" written in a bold, sans-serif font.

The logo was originally created as a promotional campaign to encourage tourism in New York City, but it quickly became a beloved symbol of the city and its people. Today, the "I NY" logo is used by the City of New York to promote tourism, culture, and community, and it can be found on everything from t-shirts and souvenirs to official city documents and marketing materials.

Interestingly, the logo was originally intended to be a temporary design, but it became so popular that it has remained a permanent part of New York City's branding and identity.