Distance:
* Walking: A brisk walk for about an hour.
* Running: A moderate run for about 20-30 minutes.
* Cycling: A leisurely bike ride for about 15-20 minutes.
* Driving: A short drive, taking around 5-10 minutes depending on traffic.
* The distance between some small towns or villages.
Other:
* The length of a typical runway at a small airport.
* The circumference of a small lake.
* The diameter of a large stadium.
To give you more specific examples, please tell me what you're interested in! For example, are you trying to figure out how long it would take to walk 3 miles? Or are you looking for things that are *exactly* 3 miles long?