My current world, very interesting and proving hard to top
Terraria: v1.3.5.3
Seed: 1486978588
World Size: Large
Difficulty: Expert
Evil: Crimson
2 Sword Shrines, both gave me an Enchanted Sword - Left Shaft is in a small circular pocket after second Crimson. Right shaft is after a the dungeon to the right of the first large pool of water.
Spawn Notes - Fairly flat with some small pockets/tunnels between two Living Wood Trees. Left side tree has a Chamber. Ice Biome is close by and a
Helevator at spawn will go through it underground. Living Wood Tree on the Left has 2 Altars by it for convenient crafting.
Desert Biome Notes - Underground Desert is to the Right and also has a Pyramid in it. To the Left are two more Pyramids with the Farthest being in the Ocean's Beach. I have not yet explored the Underground Dessert and cannot comment on its contents. One Desert to the Left is Corrupted for Red Sand. Down side is all 3 pyramids are Pharaoh Outfits.
Crimson Biome Notes - 4 Instances all to the Left. 4 Crimsons only to the Left. 3rd and 4th are on top of each other and contain a large number of altars. Large pool of water at the start of the First biome. You can stand in the Crimson and get the Biome effect while fishing.
Sky Island Notes - 6 total, 3 Lakes + 3 Lands - 2 Lands and 2 Lakes to the Right. 1 of each to the Left. I believe I found one of each item but will confirm this.
Ice Biome Notes - Its fairly large, clean of Crimson and Immediately after the Living Wood Tree to the Right at Spawn. There is a large fishable lake right at its start . Also contains a very expansive underground I hunted through for Blizzards and came up with just under 30 Ice Chests so far.
Jungle Notes - On the Left between the First and Second Crimson Hills. I have not explored the underground pretty much at all as of yet.... I hate the jungle
.. The surface however has a large but shallow lake perfect for a little fishing hut.
Dungeon Notes - Pink and is fairly large on the Right side of the map. I feel like I have only been through about a 2/3rds of it however. Some open chambers but also just some long winding corridors.
Hell Notes - I was surprised at the lack of buildings down there and my
Helevator at spawn dropped me into Lava. Numerous Shadow chests immediately to the Left. Was able to set up a Wall of Flesh rail about 3000 blocks with out too much digging.
Hard Mode Notes ** -When you go to Hard Mode the stripe is a bit random but because of all the crimson on the left and the jungle, if that stripe is Hallow it is very small and minimal surface Hallow... This is what lead me to get the seed and regenerate the world in hopes of getting Hallow on the Right.