to go to a place or visit someone (idiomatic, politely phrased); to make one's way to a place.
週末に両親の家へ足を運ぶつもりです。
I plan to go visit my parents' house this weekend.
新しい展覧会にはぜひ足を運んでください。
Please be sure to visit the new exhibition.
気になっていた店に足を運んでみたら、品揃えが良かった。
I went to the shop I was curious about, and they had a good selection.
会場まで足を運んだが、すでにイベントは終わっていた。
I made my way to the venue, but the event had already finished.