Image Rights

Location Images:

• Amsterdam – Dutch National Opera & Ballet (color adjustments, cropping)
  Wikipedia / C messier / This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
• Berlin – Deutsche Oper (farblich angepasst, Ausschnitt geändert)
  Wikipedia / Manfred Brückels / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
• Buenos Aires – Teatro Colón (color adjustments, cropping)
  Wikipedia / Falk2 / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Germany license.
• Frankfurt – Oper Frankfurt (color adjustments, cropping)
  Wikipedia / Epizentrum / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
• Houson – Houson Grand Opera (farblich angepasst, Ausschnitt geändert)
  Wikipedia / rkimpeljr / This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
• Kapstadt – Baxter Hall (color adjustments, cropping)
  Wikipedia / Zaian / This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
• London – Royal Opera House (color adjustments, cropping)
  Wikipedia / Peter Suranyi / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license / GNU Free Documentation License.
• Mailand – Teatro alla Scala (color adjustments, cropping)
  Wikipedia / Lucalari84 / This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
• München – Prinzregententheater (color adjustments, cropping)
  Wikipedia / Bbb / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license / GNU Free Documentation License.
• New York –  National Opera Center – Marc A. Scorca Hall  (cropping)
  Jeff McCrum / OPERA America
• Paris – Opéra national de Paris
  istockphoto.com
• Warschau – Teatr Wielki – Polish National Opera (color adjustments, cropping)
  Wikipedia / Chris Olszewski / Diese Datei ist lizenziert unter der Creative-Commons-Lizenz „Namensnennung – Weitergabe unter gleichen Bedingungen 4.0 international“.
• Wien – Theater an der Wien – Kammeroper (color adjustments, cropping)
  Wikipedia / Musicalvienna / This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
• Zürich – Opernhaus (color adjustments, cropping)
  Wikipedia / Matthias Süßen / This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.