No, no. It's supported from the ground by rays, probably some form of magnetic flux, like invisible legs.
8 seconds sound clip from the The War of the Worlds (1953) movie soundboard.
You can hear this line at 00:30:44 in the DVD version of the movie.
Quote context
[...]
- They'll probably move at dawn.
- There's something moving in the gully.
- Is that some kind of a flying machine?
- They must keep the opposing poles in balance and lift the machine.
- All command posts, stand by to fire.
- But, colonel, shooting's no good.
- It's always been a good persuader.
[...]