I had a very vivid one last night and I thought it would be worth sharing on here.
There was a huge theme park under construction, somewhere near Chester, England. I think it was intended to be one of the best theme parks in the world. I distinctly remember 5 coasters, 4 B&Ms and a GG woodie. The B&Ms were a front gate wing, a flyer, hyper and giga, all of which would be the best ever built. The weird thing I remember is that the hyper coaster had a drop that looked exactly like what you would have on a B&M giga, and the actual giga coaster had a drop that looked very similar in shape to Nitro at Adlabs Imagica. The GG woodie was on a scale very similar to Mine Blower, but it contained a vertical loop, with an L-shaped layout. The park was also being built next to an enormous lake that most definitely doesn't exist in real life. The park was also fairly compact, with the rides close together, but the park was huge. Think Cedar Point combined with Thorpe Park.
Such a totally random dream but it was awesome.