Point State Park is lovely landmark in Pittsburgh. I love to get some macarons from Market Street Market and then sit around the fountain, watching the rivers flow together and thinking about how Lewis and Clark also went down the river. The Fort Pitt Block House is also a fun little place to stop into and learn a little history. On top of that, you get great pictures of the "front" of the city, you can walk along some vegetation, watch boats go by, and observe people. Definitely a great place for visitors and residents alike!