[Scrambler Bob]

I wonder how far down I own the land my house is on. —

And a Chinese is asking the same question.

[Telepathic Intruder]

Cuius est solum, eius est usque ad caelum et ad inferos (”For whoever owns the soil, it is theirs up to Heaven and down to Hell”), goes back to the 13th century. But as far as air rights, 500 feet above any structure is open sky anyone can fly through.