I just discovered this set of maps (via Brian Potter) looking at the largest cities in the world from 100 CE all the way through to today (well 2015 CE). Here are what the two bookends of this map series look like:

It is an interesting reminder of just how centralized the world was around the Mediterranean and parts of Asia, and also how nothing is guaranteed. As recent as 1900, cities like Manchester and Philadelphia were among the top 10 largest cities. Today they aren't even close.

For the full map collection, click here.

UPDATE: The data behind these maps has been called into question. Look out for a follow-up post.

Over the long weekend, and across a couple of flights, I read Perfect City by Joe Berridge. I thoroughly enjoyed it. Each chapter focuses on a different world city, starting with the one and only Toronto. From New York to Singapore and London to Belfast, Joe hones in on what is working and what is not working.

No city is perfect.

I found myself folding the top corner of the page on numerous occasions. I did this every time I came across an interesting takeaway or stat, such as this one here: "Angela Merkel, the German chancellor, recently observed that Europe has 7 per cent of the world's population, 25 per cent of its GDP, and 50 per cent of its social expenditures."

However, the thread that really stood out to me is one about individuals. We all know that great things happen as a result of great teams. But as Joe profiles the various city building initiatives that he has come across throughout his work and travels, a common theme seems to emerge.

From Jane Jacobs to Lee Kuan Yew, there's often a determined individual who is set on making something happen, or set on stopping something from happening, as is the case with Jane Jacobs and Toronto's (proposed) Spadina Expressway.

This is not meant to discredit the value of teamwork. We all know that is essential. Instead, I think it speaks to the power of individual passion, conviction, and tenacity -- all of which are ingredients required to build a perfect, or almost perfect, city. Wonderful things don't just happen on their own.

Photo by Fraser Cottrell on Unsplash

I may never do another “Tweet of the Week” on ATC, but I couldn’t resist sharing this one of New Year’s Eve on Well Street in Manchester’s city centre.

So much going on this pic of New Year in Manchester by the Evening News. Like a beautiful painting. pic.twitter.com/szKKRM4U4i

— Roland Hughes (@hughesroland) January 1, 2016

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The photo was taken by Joel Goodman and first appeared in this online picture gallery.

But then Roland Hughes of the BBC remarked that its composition was similar to a Renaissance painting and that the guy in blue laying in the middle of the street, reaching for his beer, could be thought of as a parody of the reaching God in Michelangelo’s The Creation of Adam. So he tweeted it out. Since then it has gone viral.

For those of us who weren’t in Manchester on New Year’s Eve, we clearly missed one epic party.