engineering
| Name | Since | ||||
|---|---|---|---|---|---|
| A 19th Century Locomotive Workshop in Sacramento | 2017 | 0km | site_ao | ||
| A Beautiful Japanese Water Tower | 2017 | 0km | site_ao | ||
| A Gravity-Defying Lookout Tower | 2017 | 0km | site_ao | ||
| A Museum of Wacky Cars in India | 2017 | 0km | site_ao | ||
| A Working High-Speed Rail Prototype in a California Vineyard | 2017 | 0km | site_ao | ||
| Abacus Clock | 2019 | 0km | site_ao | ||
| Abandoned Luten Arch Bridge | 2019 | 0km | site_ao | ||
| Acequia Madre | 2019 | 0km | site_ao | ||
| Albarracín-Cella Roman Aqueduct | 2019 | 0km | site_ao | ||
| Alcoy and Maigmó Greenways | 2018 | 0km | site_ao | ||
| Aqueduct Veluwemeer | 2019 | 0km | site_ao | ||
| Barrage de Malpasset (Malpasset Dam) | 2019 | 0km | site_ao | ||
Batumi Tower Ferris Wheel   | 2017 | 0km | site_ao | ||
| Bracewell Radio Sundial | 2017 | 0km | site_ao | ||
| Bramhope Tunnel North Portal | 2019 | 0km | site_ao | ||
| Britain’s Split Bridges | 2018 | 0km | site_ao | ||
| Budapest Castle Hill Funicular | 2016 | 0km | site_ao | ||
| Buffalo Bill Dam | 2019 | 0km | site_ao | ||
| Çamlik Railway Museum | 2018 | 0km | site_ao | ||
| Century-Old Steam Tunnels Under Capitol Hill | 2017 | 0km | site_ao |