Photo credits
City photos come from Wikimedia Commons (Creative Commons licences or public domain) and Unsplash (Unsplash License). They have been cropped and resized; each link leads to the original photo and its licence.
- Amsterdam
- Unsplash · Unsplash License · Unsplash
- Athens
- Unsplash · Unsplash License · Unsplash
- Barcelona
- Unsplash · Unsplash License · Unsplash
- Berlin
- Unsplash · Unsplash License · Unsplash
- Bologna
- Vanni Lazzari · CC BY-SA 4.0 · Wikimedia Commons
- Bratislava
- Unsplash · Unsplash License · Unsplash
- Brussels
- Unsplash · Unsplash License · Unsplash
- Bucharest
- seisdeagosto · CC BY-SA 2.0 · Wikimedia Commons
- Budapest
- Godot13 · CC BY-SA 4.0 · Wikimedia Commons
- Cluj-Napoca
- Marcmiquel · CC BY-SA 4.0 · Wikimedia Commons
- Cologne
- Thomas Wolf, www.foto-tw.de · CC BY-SA 3.0 de · Wikimedia Commons
- Copenhagen
- Unsplash · Unsplash License · Unsplash
- Dublin
- Unsplash · Unsplash License · Unsplash
- Edinburgh
- Unsplash · Unsplash License · Unsplash
- Florence
- Wikibusters · CC BY-SA 4.0 · Wikimedia Commons
- Ghent
- Unknown · CC BY-SA 3.0 · Wikimedia Commons
- Granada
- Holger Uwe Schmitt · CC BY-SA 4.0 · Wikimedia Commons
- Groningen
- Unsplash · Unsplash License · Unsplash
- Heidelberg
- Miholz · CC BY-SA 3.0 · Wikimedia Commons
- Helsinki
- Unsplash · Unsplash License · Unsplash
- Istanbul
- Unsplash · Unsplash License · Unsplash
- Krakow
- XEvansGambitx · CC BY-SA 4.0 · Wikimedia Commons
- Leuven
- Wouterhagens · Public domain · Wikimedia Commons
- Lille
- Velvet · CC BY-SA 3.0 · Wikimedia Commons
- Lisbon
- Unsplash · Unsplash License · Unsplash
- Ljubljana
- Unsplash · Unsplash License · Unsplash
- London
- Unsplash · Unsplash License · Unsplash
- Lyon
- Philippe Alès · CC BY-SA 4.0 · Wikimedia Commons
- Maastricht
- W. Bulach · CC BY-SA 4.0 · Wikimedia Commons
- Madrid
- Unsplash · Unsplash License · Unsplash
- Manchester
- Daniel Nisbet from Manchester, United Kingdom · CC BY 2.0 · Wikimedia Commons
- Milan
- Unsplash · Unsplash License · Unsplash
- Montpellier
- Choinowski · CC BY-SA 4.0 · Wikimedia Commons
- Munich
- Unsplash · Unsplash License · Unsplash
- Murcia
- Ncs10 · CC BY-SA 4.0 · Wikimedia Commons
- Naples
- Vyacheslav Argenberg · CC BY 4.0 · Wikimedia Commons
- Padua
- Didier Descouens · CC BY-SA 4.0 · Wikimedia Commons
- Paris
- Unsplash · Unsplash License · Unsplash
- Porto
- Unsplash · Unsplash License · Unsplash
- Prague
- Unsplash · Unsplash License · Unsplash
- Riga
- Unsplash · Unsplash License · Unsplash
- Rome
- Unsplash · Unsplash License · Unsplash
- Salamanca
- Unsplash · Unsplash License · Unsplash
- Sevilla
- kallerna · CC BY-SA 4.0 · Wikimedia Commons
- Sofia
- Unsplash · Unsplash License · Unsplash
- Stockholm
- Unsplash · Unsplash License · Unsplash
- Tallinn
- Unsplash · Unsplash License · Unsplash
- Thessaloniki
- Annatsach · CC BY-SA 4.0 · Wikimedia Commons
- Utrecht
- Michielverbeek · CC BY-SA 4.0 · Wikimedia Commons
- Valencia
- Elemaki, modifications by Alvaro qc · CC BY-SA 3.0 · Wikimedia Commons
- Vienna
- Unsplash · Unsplash License · Unsplash
- Vilnius
- Unsplash · Unsplash License · Unsplash
- Warsaw
- Unsplash · Unsplash License · Unsplash
- Wroclaw
- Hrs Poland · CC BY-SA 3.0 · Wikimedia Commons
- Zagreb
- Unsplash · Unsplash License · Unsplash
- Zurich
- Jakub Hałun · CC BY 4.0 · Wikimedia Commons