Listed below is what you can unlock when you reach the indicated level. Once you reach a level with a building you will still need to find it for the first time in a pack of cards before you can construct it. Reaching a level just means cards for that building will begin to show up in packs. It also could lead to you being able to construct some higher level buildings before lower level ones if you find those cards first.
Level 1
Merry-Go Round (Junior Ride)
Burger Stand (Restaurant)
Bathroom (Utility)
Level 2
Joystick Arcade (Junior Ride)
Frozen Treats (Restaurant)
Balloon Stand (Shop)
Star Topiary (Foliage Decoration)
Maple Tree (Foliage Decoration)
Small Pines (Foliage Decoration)
Level 3
Haunted House (Family Ride)
Lemonade Cart (Restaurant)
Teddy Bear Stand (Shop)
Elephant Topiary (Foliage Decoration)
Poppies (Foliage Decoration)
Level 4
Drop Tower (Thrill Ride)
Wooden Station (Wooden Custom Coaster)
Wooden Train (Wooden Custom Coaster)
Wooden Tracks (Wooden Custom Coaster)
Wooden Chain Lift (Wooden Custom Coaster)
Wooden Helix Down (Wooden Custom Coaster)
Level 5
Fortune Teller (Family Game)
Pizza Stand (Restaurant)
Palm Tree (Adventure Decoration)
Plaza Garden (Classic Decoration)
Ride Maintenance (Utility)
Level 6
Hammer Game (Family Ride)
Caramel Popcorn (Restaurant)
Tshirt Stand (Shop)
Bamboo Plant (Adventure Decoration)
Level 7
Zipper (Thrill Ride)
Rice Noodle Stand (Restaurant)
Miner’s Cart (Western Decoration)
Wooden Helix Up (Wooden Custom Coaster)
Level 8
Water Gun (Junior Ride)
Soft Drink Cart (Restaurant)
Baseball Hat Stand (Shop)
Blue Iris (Foliage Decoration)
Level 9
Helter Skelter (Junior Ride)
Casa Mexico (Restaurant)
Mayan Temple (Adventure Decoration)
Telecom Satellite (Sci-fi Decoration)
Rocky Pond (Classic Decoration)
Level 10
Whack-A-Mole (Family Ride)
Nachos Cart (Restaurant)
Balancing Rock (Western Decoration)
Information Center (Utility)
Level 11
Spinner (Thrill Ride)
Gelato Cart (Restaurant)
Steel Station (Steel Custom Coaster)
Steel Train (Steel Custom Coaster)
Steel Tracks (Steel Custom Coaster)
Steel Chain Lift (Steel Custom Coaster)
Level 12
Cotton Candy Stand (Restaurant)
Teepees (Western Decoration)
Little Garden (Classic Decoration)
Level 13
Observation Tower (Family Ride)
Salad Stand (Restaurant)
Space Rocket (Sci-fi Decoration)
Big Rock (Adventure Decoration)
Level 14
Sushi Cart (Restaurant)
Cactus (Western Decoration)
Steel Helix Down (Steel Custom Coaster)
Level 15
Zero-G Zipper (Thrill Ride)
Taco Stand (Restaurant)
Atari Topiary (Foliage Decoration)
Steel Looping (Steel Custom Coaster)
Level 16
Vertical Slice (Thrill Ride)
Ice Tea Stand (Restaurant)
Steel Twist (Steel Custom Coaster)
Level 17
Sunglasses Stand (Shop)
Exquisite Fountain (Classic Decoration)
Geraniums (Foliage Decoration)
Level 18
Small Wheel (Junior Ride)
Picnic Area (Classic Decoration)
Dead Tree (Western Decoration)
Penny Fountain (Classic Decoration)
Level 19
4D Cinema (Family Ride)
Log Cabin (Restaurant)
Solar System (Sci-fi Decoration)
Steel Bowtie (Steel Custom Coaster)
Level 20
PinaColada Stand (Restaurant)
Steel Helix Up (Steel Custom Coaster)
Steel Dive Loop (Steel Custom Coaster)
Level 21
Bumper Cars (Family Ride)
Winged Station (Winged Custom Coaster)
Winged Train (Winged Custom Coaster)
Winged Tracks (Winged Custom Coaster)
Winged Chain Lift (Winged Custom Coaster)
Level 22
Pendulum (Thrill Ride)
Fries Stand (Restaurant)
Foam Finger Stand (Shop)
French Garden (Classic Decoration)
Level 23
Go Kart (Thrill Ride)
Skull Rock (Adventure Decoration)
Space Jeep (sci-fi decoration)
Level 24
Sushi Stand (Restaurant)
Winged Looping (Winged Custom Coaster)
Level 25
Twisted Twizzler (Thrill Ride)
Cherry On Top (Restaurant)
Bird Fountain (Classic Decoration)
Steel Corkscrew (Steel Custom Coaster)
Level 26
Pirate Ship (Family Ride)
Violets (Foliage Decoration)
Pond with Bridge (Classic Decoration)
Wind Mill (Western Decoration)
Steel Batwing (Steel Custom Coaster)
Level 27
Tornado (Thrill Ride)
Candy Apple Stand (Restaurant)
Moon Lander (Sci-fi Decoration)
Steel Roll Over (Steel Custom Coaster)
Level 28
Popcorn Stand (Restaurant)
Winged Corkscrew (Winged Custom Coaster)
Winged Inclined Loop (Winged Custom Coaster)
Level 29
Log Flume (Family Ride)
Juna Statue (Classic Decoration)
Steel Immelmann Loop (Steel Custom Coaster)
Steel Butterfly (Steel Custom Coaster)
Level 30
Seafood Grill (Restaurant)
Small Rock (Classic Decoration)
Totem Pole (Western Decoration)
Winged Non-Inverting Loop (Winged Custom Coaster)
Level 31
Tea Cups (Junior Ride)
Hyper Station (Hyper Custom Coaster)
Hyper Train (Hyper Custom Coaster)
Hyper Tracks (Hyper Custom Coaster)
Hyper Chain Lift (Hyper Custom Coaster)
Level 32
Espresso Stand (Restaurant)
Winged Helix Down (Winged Custom Coaster)
Winged Dive Loop (Winged Custom Coaster)
Hyper Station Christmas (Hyper Custom Coaster)
Level 33
Shipwreck (Adventure Decoration)
Western Wagon (Western Decoration)
Hyper Train Christmas (Hyper Custom Coaster)
Hyper Station Valentine (Hyper Custom Coaster)
Level 34
Pasta Stand (Restaurant)
Winged Twist (Winged Custom Coaster)
Hyper Train Valentine (Hyper Custom Coaster)
Level 35
Flying Carpet (Thrill Ride)
Forest Pine (Foliage Decoration)
Pirate Cannon (Adventure Decoration)
Level 36
Circus (Family Ride)
Space Antenna (Sci-fi Decoration)
Water Tower (Western Decoration)
Level 37
Asian-2-Go (Restaurant)
Winged Zero G Roll (Winged Custom Coaster)
Level 38
Ferris Wheel (Family Ride)
Barrel’n Bones (Adventure Decoration)
Level 39
Churros Stand (Restaurant)
Winged Helix Up (Winged Custom Coaster)
Winged Immelmann Loop (Winged Custom Coaster)
Level 40
Super Flyer (Thrill Ride)
Flower Bush (Foliage Decoration)
Hyper Helix Down (Hyper Custom Coaster)
Level 41
Inverted Station (Inverted Custom Coaster)
Inverted Train (Inverted Custom Coaster)
Inverted Tracks (Inverted Custom Coaster)
Inverted Chain Lift (Inverted Custom Coaster)
Level 42
Typhoon (Thrill Ride)
Jack the Parrot (Adventure Decoration)
Space Station (Sci-fi Decoration)
Level 43
Sandwich Stand (Restaurant)
Hyper Hammerhead Turn (Hyper Custom Coaster)
Level 44
Funslide (Junior Ride)
Inverted Helix Down (Inverted Custom Coaster)
Level 45
Ghost Train (Thrill Ride)
Italian House (Restaurant)
Astronaut (Sci-fi Decoration)
Level 46
Ring of Fire (Thrill Ride)
Inverted Looping (Inverted Custom Coaster)
Level 47
Hyper Helix Up (Hyper Custom Coaster)
Inverted Cobra Roll (Inverted Custom Coaster)
Level 48
Silly Swings (Family Ride)
Dumpling Stand (Restaurant)
Solar Tree (Sci-fi Decoration)
Level 49
Inverted Helix Up (Inverted Custom Coaster)
Inverted Batwing (Inverted Custom Coaster)
Level 50
Spacewars (Family Ride)
Inverted Twist (Inverted Custom Coaster)
Level 51
Dive Station (Dive Custom Coaster)
Dive Train (Dive Custom Coaster)
Dive Tracks (Dive Custom Coaster)
Dive Chain Lift (Dive Custom Coaster)
Level 53
Inverted Bowtie (Inverted Custom Coaster)
Inverted Zero G Roll (Inverted Custom Coaster)
Level 54
Dive Helix Down (Dive Custom Coaster)
Level 55
Dive Dive Loop (Dive Custom Coaster)
Level 57
Dive Side Winder Up (Dive Custom Coaster)
Level 58
Inverted Pretzel Loop (Inverted Custom Coaster)
Inverted Non Inverting Loop (Inverted Custom Coaster)
Level 60
Dive Helix Up (Dive Custom Coaster)
Level 61
Accelerator Station (Accelerator Custom Coaster)
Accelerator Train (Accelerator Custom Coaster)
Accelerator Tracks (Accelerator Custom Coaster)
Accelerator Chain Lift (Accelerator Custom Coaster)
Level 64
Dive Corkscrew (Dive Custom Coaster)
Level 66
Inverted Corkscrew (Inverted Custom Coaster)
Level 67
Dive Immelmann Loop (Dive Custom Coaster)
Level 68
Dive Side Winder Down (Dive Custom Coaster)
Level 69
Dive Vertical Twist Up (Dive Custom Coaster)
Accelerator Top Hat (Accelerator Custom Coaster)
Level 71
Accelerator Vertical Twist Up (Accelerator Custom Coaster)
Level 74
Dive Vertical Twist Down (Dive Custom Coaster)
Level 75
Dive Zero G Roll (Dive Custom Coaster)
Level 76
Dive Non Inverting Loop (Dive Custom Coaster)
Level 77
Dive Twist (Dive Custom Coaster)
Level 78
Dive Looping (Dive Custom Coaster)
Level 79
Accelerator Helix Down (Accelerator Custom Coaster)
Level 81
Accelerator Vertical Twist Down (Accelerator Custom Coaster)
Level 83
Accelerator Helix Up (Accelerator Custom Coaster)
Level 85
Accelerator Norweigan Loop (Accelerator Custom Coaster)