It's interesting how grand a city can look via aerials and at the right angle and perspective. The photo set that
summersm343 posted really makes Philly look ubiquitous and quite monolithic. Excellent density, integration of architecture spanning the decades, and with plenty of in your face street integration. Blends quite nicely to show a multi-faceted, multi-cultured city that brings the best of urbanism all together, and is a pinnacle of America's urban fabric.