May 18th is National Museum Day, so what better way to celebrate than highlighting the ones most visited in America?

上文中的划线部分的意思是,请老师剖析一下。感谢回答。

May 18th is National Museum Day, so what better way to celebrate than highlighting the ones most visited in America?

划线部分应该是一个修辞性问句。

What is the better way to celebrate than highlighting the ones most visited in America?

修辞性问句无需回答,实质表达的是一定的意义:没比点亮参观人数最多的几个博物馆更好的庆祝方法了---将访问人数最多的几个博物馆用彩灯装饰是最好的庆祝方法。