Oh no, you got me started.
This one time I visited some kind of park, only to find the gates closed. I climbed the gates and realized I could fly, so I glided over the hills and temples of the old world. Landed on a platform to witness a fierce battle between two warriors, and flew away past a big temple with cuneiform writing I could not understand. Later I reached two large iron gates but they were closed, and a miniature arena next to me. I somehow shrunk and got inside the arena and was immediately engaged in battle against an unknown opponent who quickly kicked my ass. In rage, I got up and yelled "I am Ashurbanipal, king of Assyria!" and with newly found strength obliterated my rival. Then I was out of the arena and the gates unlocked, and I left that place and my dream.
Another time I was in a dull, dusty town like those of 1970s movies. Got in an old school VW van and drove to some big old mansion like that of the Addams Family. I went in and found lots of unusually visceral art like that associated with Nosferatu, brown with thorns and stuff. I saw an old lady sitting on a chair and then she casually started to burn, causing the walls to release blood (or red paint?). I wasn't exactly disturbed but nonetheless I left that place for good.
On a different occasion I was lost in the desert looking for shelter and stumbled upon a small village where I wasn't exactly welcome. Soon thereafter the darkness came and engulfed our world, causing pillars of ice to rise from the formerly hot sand. As I fled the darkness I reached some stairs and, not wanting to touch the sand, stood there watching. A lizard came to me and was split open by some unseen force, displaying its mess of blood and internal organs. Don't remember much else.
When I was 5 or 6 I dreamt I was being chased by some maniac and, after passing a street with very nice and green trees, I tried to hide in my school or kindergarden. But my efforts were fruitless, the maniac was faster and reached out to me stabbing my back with a single, sharp and long claw. I died and then woke up.
There are probably a few more. I'm an active dreamer.
Edit: another time I took a nap while listening to older Therion. In my dream I realized I could still hear the music and there was an holographic dragon dancing along to it in my front yard. That was kind of entertaining.
Another time I woke up (inside my dream) and found an empty town. I went out knocking on doors until I found this empty house with the door unlocked. Went in and found nobody, went upstairs and found a messy room. Inside found a bunch of old papers and a crystal clear long pill, like a transparent fish oil capsule. I looked out the window and witnessed a bright light and the end of the world, everything down the street consumed by light. Desperately I chugged the pill and everything went dark. Then I was an old man staring down a lively street, living in that one house with the unlocked door. In real life I made this into a short comic and tried making sense of it. My personal interpretation is the world was in a constant threat of alien invasion, and some unknown pact established there must be a guardian. The former guardian died of old age and when I stumbled upon and swallowed that pill I became the new one, stopping the imminent destruction while being trapped there until the end of my days. Can't deny this was likely inspired by stories such as "we can remember it for you wholesale".