Oh! Yup! A long time ago! It seems there are more skyscrapers there now.
If you are not using 3speak app, you could upload your videos onto your YouTube account. Then you just copy the YouTube link onto your post! It’s very fast and easy.
You have to check out community tabs. Travel posts could be posted onto their formats. Several to choose from; check out other people’s feeds on travel. You should pin your post on the world map to get more attention and upvotes.
Good luck.
RE: Exploring London.