It seems fun, so let’s have a look.
We watched the Christmas parade from the office windows.
Mom would have gone sightseeing in Tokyo.
If you try to see a bunch of things at once, you are probably sightseeing.
The reading is all on'yomi, and you know how to read 物. 見's on'yomi (けん) is a reading you didn't learn with the kanji because it's so much less useful, but you do have to know it here. You've seen it with 発見 a couple levels ago, so that should help. Just imagine taking the samurai Ken on an epic sightseeing trip. Think of all the things you and Ken will visit!