London photo of the day: empty tube

If you haven’t commented here before, your first comment will be held for MaryAnn’s approval. This is an anti-spam, anti-troll, anti-abuse measure. If your comment is not spam, trollish, or abusive, it will be approved, and all your future comments will post immediately. (Further comments may still be deleted if spammy, trollish, or abusive, and continued such behavior will get your account deleted and banned.)

If you’re logged in here to comment via Facebook and you’re having problems, please see this post.

PLEASE NOTE: The many many Disqus comments that were missing have mostly been restored! I continue to work with Disqus to resolve the lingering issues and will update you asap.