Overlooking my testing valley

Here you can overlook the valley area next to my spawn point. We’re standing on a floating glass platform connected by sky bridges made of planks similar to the one you see connecting from the right to the hill in the middle of the image. From that hill (which is home to my first note block test) you can take a little gravity-powered roller coaster down or take a redstone powered mine cart to the mountains in the distance. You can continue in a tunnel straight through that mountain.

On the ground you can see a send/return mine cart experiment in the sandy area on the left and a glass covered mine cart track stretching all the way across the valley for quick transportation.