Crediti delle immagini

Video: Tolga Aslantürk (Cappadocia) e Clément Proust (isole Lofoten), su Pexels, accorciati. Foto, su Wikimedia Commons, ritagliate:

• New York : Jdforrester, CC BY 4.0
• Tokyo : Basile Morin, CC BY-SA 4.0
• Hong Kong : Bernard Spragg. NZ, CC0
• Shanghai : Stefan Fussan, CC BY-SA 3.0
• Chicago : Tony Webster, CC BY 2.0
• San Francisco : Dllu, CC BY-SA 4.0
• Singapore : chenisyuan, CC BY-SA 4.0
• Taipei : Heeheemalu, CC BY-SA 4.0
• Bangkok : Sergei Gussev, CC BY 4.0
• Melbourne : Shkuru Afshar, CC BY-SA 4.0
• Sydney : Alex Proimos, CC BY 2.0
• London : Colin, CC BY-SA 4.0