I "drove" around Dunseverick, Northern Ireland by using Google Earth and got a better understanding about the the general landscape, housing, farm lands, and even a view of the Giant's Causeway. I saw Dunseverick Castle, which existed in the time of my 3rd Great Grandfather when he lived there. Dunseverick castle is pretty much a pile of rocks now, but I can imagine it to be a place that he and his family visited almost 200 years ago in the early 1800s.
Go visit places that your ancestors lived in. Get a sense of what the terrain, city, and other landmarks may have been like when they lived there. Can you find the street they lived on, and perhaps the same house they lived in? Explore the neighborhood where they lived.