There's a ghost tower in Vice City that only exists when you're far away

The 'Ghost Tower' near Fort Baxter is an air traffic control tower that was cut from the final game but accidentally left as a low-resolution texture visible from Vice Beach. Once you cross to the mainland and the full map loads, the tower completely vanishes — it was meant to serve a runway that was also scrapped.

Source: Glitches in GTA Vice City — CC BY-SA