A vast, lively city that is never the same twice. It looks like your typical mild-mannered, politically correct city, but the area's residents know that it is far more. Truly uplifting people, amazing turnouts for sporting events, lots of beer, Pennsylvania's largest concentration of Gothic Lolitas, a wonderful indie music scene, and some great colleges.
Also, there is so much water. Three rivers meet at an area Pittsburghers have come to call The Point, and there's a cool fountain and picnic area there. Pittsburgh is also notorious for flooding.
Finally, Pittsburgh's weather is off-the-wall. It's May as I'm writing this, and we had snow two weeks ago, warm-ish rain last week, and this week we're expecting it to be cold. Still.
Going on vacation? Come to Pittsburgh. You may have to stay in Monroeville because there aren't any hotels in the city, but look on the bright side--it's only a twenty-minute ride from any of our suburbs to the city itself...!