[London] London Underground

The London Underground is widespread and can take you anywhere in Greater London. Just look for the "underground" signs around the city and you'll be able to get around easily. Also, whereas previously you had to purchase an Oyster card, now you can use a card that allows touch-to-play payment. The subway also runs directly from Heathrow Airport to central London, so if you're heading to London, be sure to try it! #0yentravel London train underground #subway