* Metal object: This means it's made of metal.

* Stands on the ground: It has a base and rests on the earth.

* Highest point: This is tricky. Does it mean the highest point on Earth, or just the highest point in a local area?

Possible Answers:

* A radio tower: Radio towers are often made of metal and are designed to be as tall as possible.

* A tall building with a metal frame: Skyscrapers often have steel frames and can reach incredible heights.

* A statue: Some statues, particularly those of famous figures, can be quite tall.

* A flagpole: Flagpoles are frequently made of metal and are designed to be tall enough to fly flags effectively.

Let me know if you had something else in mind, and I'll try my best to figure it out!