What are facts about capital cities of europe?

Here are just a couple of European capitals and some facts on them. Feel free to add to the list with additional capitals and/or facts.

London, United Kingdom:

- second largest city in Europe

- heart of the Industrial Revolution in the UK

- also the capital of England, an autonomous country in the UK

Paris, France:

- most visited city in the world

- one of the most multi-cultural cities in the world

- named after the Gallic tribe, Parisii

Athens, Greece:

- oldest city in Europe

- was the heart of Ancient Greece

- is where democracy originated from