This category is for transport infrastructure completed in the year 1821.
Subcategories
This category has the following 5 subcategories, out of 5 total.
B
- Bridges completed in 1821 (3 P)
C
- Canals opened in 1821 (3 P)
L
R
- Railway lines opened in 1821 (1 P)
T
- Tunnels completed in 1821 (1 P)