It's been one year since I visited Pittsburgh, Pennsylvania, but I still have very vivid memories of this city, remarkable in many ways, and I feel like I was there only yesterday. Great city indeed - glorious past, notable present and, clearly, a bright future. You can tell if a city is livable if you see people hanging out on weekday nights and weekends. The number of theatres, pubs, restaurants, galleries, museums and public art installations can also tell you something about the city and its residents. Speaking about the pubs - Pittsburg holds a world record for the highest number of pubs per capita. Unquestionably livable! 

In 2003, when a tornado struck the Kinzua Viaduct, once the longest and tallest railroad bridge in the world, the engineers turned a disaster into an opportunity and built a pedestrian skywalk with a glass floor on the remaining support towers. Kinzua Bridge State Park in northern Pennsylvania offers you a tour of the American rich railroad past as well as breathtaking views of the surrounding mountains.

Pennsylvania has its own Grand Canyon, located just south of the border with New York state in a beautiful and lush green Tioga National Forest. And even though the Grand Canyon in Arizona is way bigger, longer and deeper, the Grand Canyon of Pennsylvania is nonetheless spectacular and offers arguably the best views in the whole state. It's also located way off the beaten path, so you can pretty much have it to yourself.