You Go to the fountain and then you see the sparkle on the fountain on the right side of the fountain and then you walk to get it.
If you climb the fountain, it is in the water halfway up.
The rope is on the water wheel on the right side of the windmill.
The coin is in the fountain of the spaceship. Jump in the water (not the one on the ground, the one above it) and you should get it.
The gold coin in Astro-knights is in the fountain. You will see something glittering in the water, and if you pick it up, it will be the coin. Use it to pay your admission to the Mordred museum.
On the right side of the mill, next to the mud swamp.
On the water wheel at the mill. (Far right side of the Mill area) You jump up to it
its in the water of the fountain
The mill is out of commission. The only way to get across the mud swamp is the hovercraft in the mill's attic.
It is in the middle section under the rocket, and will show up as a shiny glint in the water.
There are two things. One: There is a gold coin on the side in the water you have to get. Two: The combination to get inside is :Moon, Planet, Star, Sun.
The gold coin is in the fountain next to the Mordred Museum. You will see it sparkle in the water. Use it to pay your admission to the museum.
Go to the fountain sign and press moon, planet, star, sun. the water will be gone. go down and you will see a secret group of mordred-fans.