UnThis is a list about the tallest buildings in Robloxia.
| Rank | Name | Height | Information | Owners | |
|---|---|---|---|---|---|
| Meter(s) | Stud(s) | ||||
| 1 | Ultimablox Spire | 6,727 | 23,612 | The Ultimablox Spire is a building located in the oceanic regions of Kaijuville on its own isolated island. | Skellington J. Troy |
| 2 | AirGojira Spire | 1,960 | 7,000 | The AirGojira Spire is a 7,000-stud tall building built in 2023. | AirGojira |
| 3 | Roblox Headquarters 50 | 1,449 | 5,178 | Roblox Headquarters 50 was the tallest building in Robloxia from 2021 until Ultimablox Spire surpassed it in 2022. It is also the most popular building in Robloxia. | Unknown |
| 4 | Blocky Tower | 1,233 | 4,404 | Blocky Tower was the tallest building in Robloxia from 2019 until Roblox Headquarters 50 was built and surpassed Blocky Tower in 2021. | Unknown |
| 5 | Bacon Landmark | 1,002 | 3,579 | Bacon Landmark was the tallest and the first building in Robloxia to reach 1 kilometer in height (3,571 studs). It would later be surpassed by Blocky Tower in 2019. | Unknown |
| 6 | ROBLOXia Tower | 888 | 3,171 | ROBLOXia Tower was the tallest building in Robloxia until Guest Tower surpassed it by 94 meters in 2014. | Unknown |
| 7 | Mode's Tower | 646 | 2309 | Mode's Tower is the 2nd newest tower to be on this list. Mode's Tower surpassed Bloxington Twin Towers by 43 meters in 2023. | Unknown |
| 8 | Main Tower(Lexington Towers) | 628 | 2,244 | Lexington Towers is a supertall skyscraper set to be just short of surpassing Mode's Tower, however with its spire finish it does surpass Mode's Tower. It is also associated with the Roblox Elevator Community. It is under a large expansion, both upwards and horizontally. | Lexington Holdings |
| 9 | Jarison's Water Piping and Heating Facility | 560 | 2,000 | Jarison's Water Piping and Heating Facillity is the largest water piping and heating facility known in Robloxia, as well as the former national record holder for the tallest building in Robloxia from 1955 to April 4, 1973, when Bloxington Twin Towers dwarfed it by 43 meters. | Unknown |
| 10 | The Robloxian Plaza of Retropolis | 345 | 1,130 | The Robloxian Plaza of Retropolis or simply the Robloxian Plaza is the tallest building in Rohio that is completed in 2015. | Unknown |
| 11 | Hurceles Tower(Lexington Towers) | 336 | 1,200 | The Hurceles Tower is considered the Main Tower's "little sister" in the design scheme of the Lexington Towers complex. It is currently under construction, and is set to be completed in mid 2026. | Lexington Holdings |
| 12 | Financial Building Blox | 301 | 1,075 | Financial Building Blox, also known as Blox Trade Center, was the tallest building in Robloxia until Jarison's Water Piping and Heating Facility surpassed it by 259 meters in 1955. | Unknown |
| 13 | Landmark Roblox | 291 | 1,040 | Landmark Roblox was the tallest building in Robloxia until Financial Building Blox surpassed it by 10 meters in 1954. Financial Building Blox would be the first tower to exceed 300 meters (1,071 studs). | Unknown |