According to Google maps: there’s no definite border (indicated by dashed lines) between the Kashmir region (located near both India & Pakistan) in which India considers the entire region as theirs but both China & Pakistan argue against India’s claim.
Plenty of places are disputed because they have natural resources or sit in strategically interesting locations.
But plenty of other place have nothing special to offer and are just disputed for stupid nationalist reasons.
Kashmir is one of the latter. As always, the ones who suffer from the nationalist nonsense are the everyday Kashmiris trying to live a normal life.
And then there is this place: https://en.wikipedia.org/wiki/Bir_Tawil