I (read about) the famous building called the Leaning Tower

I (read about) the famous building called the Leaning Tower of Pisa.除了(read about)可以用heard of
下面是全文,根据此段除了(read about)可以用heard of吗?

I often dreamed about Pisa when I was a boy．I (read about) the famous building called the Leaning Tower of Pisa．But when I read the word Pisa, I was thinking of pizza．I thought this tower was a place __32__ pizza．It __33__the best place to buy pizza in the world, I thought．