MTC - The sky is the limit

This is my entry for the August MTC of 2018J

Theme of the Month: Time-Traveling
Build a track that could be roughly separated into three distinc eras of trackbuilding with each section about at least 10s long.

First section:
I tried to get everything out of the very limited simple editor here with also utilizing so terraform sections.

Second section:
Here I tried to mostly use new, interesting surfaces that I couldn't use beforehand and ending in a transition combination with some farm buildings and houses which were quite popular in valley.

Third section:
In this section I just wanted to go all out and only use objects for the whole part. I also placed the whole island way higher than the usual heightlimit

Enjoy,
Lars