Christopher Wren, born OTD in 1632, designed St Paul's Cathedral in #London https://cromwell-intl.com/travel/uk/london-underground/?s=mb #travel #history
Bob's Pages of Travel, Linux, Cybersecurity, and MoreTravel on the London UndergroundThe Underground, or Tube, is an efficient way to get around London. It's easy to buy tickets and passes, and navigate your way around the system.