good place to visit.是什么结构?to visit是做定语吗?a heavy price to pay

to visit是做place的后置定语的；a heavy price to pay也是同理；
His way of dealing with this probelem is unique.这句中of 表示前面的名词way的性质,动名词短语的dealing with this probelem 是已经发生的动作了；而to do表示将来的动作,故不能用to 代替.