Note: This map was built in version 1.3.5 of Terraria. If you are a mobile player, it will not work for you until mobile reaches that update.
This is a large vanilla world with crimson, where I built a detailed base, and customized dungeon. The base has a large crafting area (with early-game crafting stations readily available), large storage area, housing for all NPCs (as of version 1.3.5), fishing ponds for all angler quests, herb farm, glowing mushroom farm, and a hellevator with a miniature base at the bottom of it.
The dungeon has been completely customized from scratch. It has all of the loot you would expect to find within a dungeon, as well as an additional fishing pond, and safe area to set your spawn point. The entrance has been completely customized, but will still spawn the cultists in hardmode. The dungeon itself has unique challenges within it, as well as a half dozen secret areas. You can make it as easy or difficult as you'd like by mining and placing blocks, or trying the challenges without changing the dungeon. Explore, and have fun!
The download folder has both a normal and expert mode version of the map, so that you can play on your preferred difficulty. Simply download the folder, unzip/extract its contents, and copy/paste the version you want into your world saves folder (by default located in Documents > My Games > Terraria > Worlds).
I hope you all enjoy the map!