I went down to Venezuela and ended up renting a helicopter and flew with my sons to the tops of the tepuis, these freestanding jungle mesas, 'lost worlds' as it were. In fact, it's almost impossible to access them without one. So we were able to land and spend some time there. We were trapped for about six hours by clouds that came in.
It is hard to imagine Andre Le Notre laying out the exquisite landscape designs for Vaux-le-Vicomte, and later the magnificent Chateau de Versailles, with no high hill to stand on, no helicopter to fly in, and no drone to show him the complexities of the terrain. Yet he did, and with extreme precision, accuracy, and high style.
Only a crazy person wouldn't fear approaching a car with tinted windows during a late-night car stop, or pounding up a flight of stairs to execute a search warrant, or fast-roping from a helicopter down into hostile fire. Real agents, like real people, feel that fear in the pit of their stomachs.