New York City
Madison Square Garden, “the most famous arena in the world,” began construction at its 7th Avenue location above Pennsylvania Station in 1964. This is what The Garden looked like mid-way through its construction, which was completed in 1968.
Madison Square Garden was completed a few years before the Knicks went on to win their first and second championships (incidentally their only two). Little do people know that Madison Square Garden was actually located further downtown, on 23rd street, prior to its current location.