Fodor's Expert Review Pennsylvania Convention Center
It's big: a massive expansion completed in 2011 covers 20 acres of central Philadelphia. And it's beautiful: the 2.3 million square feet of space are punctuated by the largest permanent collection of contemporary art in a building of its kind. Many city and state artists are represented in the niches, nooks, and galleries built to house their multimedia works. To see the architectural highlight of the building—the Reading Terminal's magnificently restored four-story-high Victorian train shed, which has been transformed into the Convention Center's Grand Hall—enter the building through the century-old Italian Renaissance Headhouse structure on Market Street between 11th and 12th streets and ride up the escalator.