Uranus and Neptune are called the sister planets
Neptune has rings and is magnetic. Yes, but that isn't unique.
its blue
Yes, Neptune does have rings, as to other uniquefeatures, Neptune is an almost exact twin of Uranus. (There are differences in size, and a few other characteristics not worth noting).
neptune has a lot of features
Why is Neptune blue? Neptune
No. Neptune is a gas giant, it has no land or surface.
Nope
There are no unique features of Windows 98, nothing is unique about Windows 98.
Neptune is a jovian (gas-like) planet. It's surface features are unknown, but is thought to have a rocky/icy/liquid core
No. Neptune is a gas giant. It has no solid surface and thus no land.
Neptune was the first planet found by mathematical prediction rather than by empirical.
Something unique about it is its temperature its -218 Celsius. It's very beautiful... calming