![An updated map of a potential metro system for Houston; added a loop and a line to Baytown. : r/houston An updated map of a potential metro system for Houston; added a loop and a line to Baytown. : r/houston](https://preview.redd.it/qdm1h6ye7nt61.png?auto=webp&s=5455d8ca3215ab2521de0ca3da337cff4e0d84f8)
An updated map of a potential metro system for Houston; added a loop and a line to Baytown. : r/houston
![Kanpur metro, India. Construction of priority corridor started in December 2019 and completed in November 2021. This is India's 13th Metro line. India has 34 more metros under construction : r/EngineeringPorn Kanpur metro, India. Construction of priority corridor started in December 2019 and completed in November 2021. This is India's 13th Metro line. India has 34 more metros under construction : r/EngineeringPorn](https://preview.redd.it/32rh22x1rzm81.jpg?auto=webp&s=ec7816a7b0bb12c7f00c33810e15dab63bf04101)
Kanpur metro, India. Construction of priority corridor started in December 2019 and completed in November 2021. This is India's 13th Metro line. India has 34 more metros under construction : r/EngineeringPorn
![DC's Metro has a gorgeous design. I think it's one of the nicest subway systems in the USA. : r/washingtondc DC's Metro has a gorgeous design. I think it's one of the nicest subway systems in the USA. : r/washingtondc](https://preview.redd.it/xhja161j1l791.jpg?width=640&crop=smart&auto=webp&s=ac805af057e80dfc2ace9d42a558fa0f85832f6d)