Initially, Minecraft may not seem like a good platform to create theme parks on, but this may change your mind.
We've been up for over a year and a half, so our map is quite large. The server is ran by 2 owners, myself (Coasterfan312) and RapidTeapot. We have Imagineer staff members who also build their own custom rides or, in the case of Alton Towers, help with the real parks.
Our main projects are Disneyland Paris, Disneyland IMC Resort (full custom Disney resort designed and built by the 2 owners, including myself) and Alton Towers. As well as this, we have many custom and remade rides individually in certain areas.
The server is open 24/7. Feel free to hop on - I'll leave the details for you to discover if you join
IP: imagineeringmc.mcph.co:25976
And, of course, here are some pictures to give you a taste of what we have to offer:
The Smiler - Alton Towers
Castle & Hub - Disneyland IMC Resort
The Twilight Zone Tower Of Terror - Disneyland IMC Resort
Space Mountain: Mission 2 - Disneyland Paris
Castle - Disneyland Paris (has been updated to be more accurate since this screenshot)