Custom Scenery

Peter's Avalanche Summit
An assortment of about a dozen pieces in various slopes, straights, curves, and helixes.  Comes in a realistic concrete texture that is not colorable.
Created by: coaster-inc

A bunch of Maple trees.
Author: Old Spice

A set including the planets 1 - 9 and some asteroids.
Author: Old Spice

Author: Osudenny 
Also I did some research and enclosed is a folder of wanted poster for the Wanted Litter Bin and that folder goes into your RCT3 folder in the my pictures.

Create your own reflective pool with this set.
Author: Old Spice

6 rocks in 2 different types for a total of 12 speaker rocks. Now you can have decorative speakers throughout your park!
Author: Old Spice

Author: Ardy
Here is my latest set. It is my first station set under the name Ardy, my first wooden station set, and my first set this year, so it's a triple record breaker. I hope you enjoy it and please leave a comment telling me about what you think about it.

This set contains a series of wooden walls, some tipi's, cactus, dead tree branches, wanted posters, (animated) vultures and an animated mill for all your Western themed parks  :)
Keep in mind that this set is far from finished but I just release it as it is :)
Total amount of objects: 89 items (Walls, General Scenery and Foliage)
This set uses shared textures
Author: kiotho

Author: Delpaint
Hi all I have re done old house 1 / 2/ 3 in to one new set with new icons to find want you need  
just delete the old set /old house / old house two / old house three and use this one instead hope this helps.

Set of 34 pieces to build a theme park for film studios. It has pieces to build the exterior of the soudnstages and for the interior.
Author: diepas79

Some walls that have a star texture. Texture credit goes to 'Fisherman'.
Author: Old Spice

Paradise Pier's California Screamin' sign is now available in RCT3! 8)
Perfect for your Paradise Pier park especially for your California Screamin' coaster if you are recreating it.
Some notes:
*The rings in the sign is using an animated texture.
*The "California Screamin" logo is functioned as a Loudspeaker.
*The set was made using 1 x 1 (full) tile.
*Does not contain any lights. (Use my "Light Set"; available here, just search for it.)
*Polys: High
Installation:
C:\Program Files\Atari\RollerCoaster Tycoon 3\Style\Themed
requires RCT3 Wild and Soaked expansion packs to work perfectly.
Thank you and Happy Holidays everyone! :)
Author: AzoRctMan25

Author: Osudenny
Here is a set that I made that will fit any door opening in any of my sets.

A boatload of trees.
Author: Old Spice

The "Lights Set 2" is the second version of my other custom scenery and my most downloaded CS, "Lights!!!" which is also available here.
The set is more flexible and more simpler than ever. You can literally place it anywhere you want because it is now available in Quarter (1/4) Tiles, plus, 4 new offset positions! Unlike the previous one, which is only available in full tile.
The set contains No Bulb Lights (Radius 10); and
Torch/Flickering Lights, which is perfect for your dark rides if you have one.
All of them are RECOLORABLE
Read the "Read me first.txt" inside the .zip file for more information!
Happy gaming everyone!
Author: AzoRCTMan25

A small set of voodoo dolls in various poses.

Originally created by StationJimJr

Small set of transparent, conforming cobblestone path covers.

Originally created by Adam87

Small set of transparent, re-colorable, and conforming path covers.

Originally created by Adam87

A selection of trees, plants, bushes, vines and other junglistic items.

Originally created by Moby

Four styles of Wisteria.

Originally created by n7

Western Themed construction set comprised of 379 pieces. Diagonals are included overall, though not depicted in the image above. Recolorable (mostly). Icons provided. Placements: Full, Half, Half-Offset, Left & Right.

STRESSED OUT WEST I
Scale: Small (S)  Polys: Lower (30 max)  Style: Flat
Originally created by ParkFink

4 Salvia plants.

Originally created by n7

A set of mushroom houses, log benches, plants, and more. Designed by Moki to enhance your fantasy themed projects.
Originally created by Moki

A set of garden enhancements by Moki, including a gazebo, rock paths, fountain, plus various plants and flowers.
Originally created by Moki

A set of pool enhancements by Moki. Included are tables, chairs, chaise lounges, and various pool extras. Many items are recolorable.
Originally created by Moki