View of the Opera House in the city of Oslo, Norway, Scandinavia, Europe

Teatro Colon, opera house in the Center of Buenos Aires, Argentina, South America

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

Royal Opera House, Muscat, Oman, Middle East

Paris Opera House from Lafayette Gallery (Galeries Lafayette), Paris, France, Europe

View of saunas, Oslo Opera House and Munch Museum reflecting in harbour on cloudy evening, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House and Munch Museum at dusk, Oslo, Norway, Scandinavia, Europe

View of Opera House and harbourside saunas, Oslo, Norway, Scandinavia, Europe

View of the Munch Museum and Oslo Opera House on a sunny day, Oslo, Norway, Scandinavia, Europe

View of the Munch Museum and Oslo Opera House on a sunny day, Oslo, Norway, Scandinavia, Europe

View of Opera House cafe on a sunny day, Oslo, Norway, Scandinavia, Europe

View of Opera Beach and Opera House on a sunny day, Oslo, Norway, Scandinavia, Europe

Aerial of the Elbphilamonie, the Hamburg opera house building overlooking the city of Hamburg, Germany, Europe

Vienna State Opera House, UNESCO World Heritage Site, Hotel Sacher, Albertinaplatz, Vienna, Austria, Europe

Center of Buenos Aires, Argentina, South America

Klagenfurt am Worthersee, Carinthia, Austria, Europe

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

St. Mary the Virgin Church, dating from the 1760s, Glynde, East Sussex, England, United Kingdom, Europe

View of Oslo Opera House and Munch Museum reflecting in harbour on cloudy day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House and Munch Museum reflecting in harbour on cloudy day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House and Munch Museum reflecting in harbour on cloudy day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House and Munch Museum reflecting in harbour on cloudy evening, Oslo, Norway, Scandinavia, Europe

View of saunas, Oslo Opera House and Munch Museum reflecting in harbour on cloudy evening, Oslo, Norway, Scandinavia, Europe

View of Kirsten Flagstad statue and Oslo Opera House reflecting in harbour on cloudy evening, Oslo, Norway, Scandinavia, Europe

View of buildings and Oslo Opera House reflecting in harbour at dusk, Oslo, Norway, Scandinavia, Europe

View of Opera House and harbourside saunas, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House on sunny day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House on sunny day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House on sunny day, Oslo, Norway, Scandinavia, Europe

View of Oslo Opera House on sunny day, Oslo, Norway, Scandinavia, Europe

View of Opera House and Munch Museum on a sunny day, Oslo, Norway, Scandinavia, Europe

View of Opera Beach, ferris wheel and Opera House on a sunny day, Oslo, Norway, Scandinavia, Europe

Elbphilamonie, the Hamburg opera house overlooking the Speicherstadt of Hamburg, Germany, Europe

Aerial of the Elbphilamonie, the Hamburg opera house building overlooking the city of Hamburg, Germany, Europe

Aerial of the Elbphilamonie the Hamburg opera house building overlooking the city of Hamburg, Germany, Europe

Aerial of the Elbphilamonie the Hamburg opera house building overlooking the city of Hamburg, Germany, Europe

Royal Opera House, Muscat, Sultanate of Oman, Arabian Peninsula

Royal Opera House, Muscat, Sultanate of Oman, Arabian Peninsula

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

View of Kirsten Flagstad statue and Oslo Opera House during winter, Oslo, Norway, Scandinavia

View of Opera House interior of the foyer and auditorium, Oslo, Norway, Scandinavia, Europe

Hamburg Elbphilamonie, the opera house of Hamburg, Hamburg, Germany, Europe

Opera House, Riga, Latvia, Europe

Paris Opera House, Paris, France, Europe

Aerial view by drone of State Opera House, Varna, Bulgaria, Europe

The Sydney Opera House, UNESCO World Heritage Site, and skyline of Sydney at sunset, New South Wales, Australia, Pacific

Exterior of La Scala, world renowned Opera House, Piazza della Scala, Milan, Lombardy, Italy, Europe

El Palau de les Arts Reina Sofia (Opera House and performing arts centre) at night, the City of Arts and Sciences (Ciudad de las Artes y las Ciencias), Valencia, Spain, Euruope

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

El Palau de les Arts Reina Sofia (Opera House and performing arts centre) at the City of Arts and Sciences (Ciudad de las Artes y las Ciencias), Valencia, Spain, Europe

Sydney city skyline and harbour including the Opera House at dusk, Sydney, New South Wales, Australia, Pacific

Exterior of the Opera House, Hanoi, Vietnam, Indochina, Southeast Asia, Asia

Aerial view by drone of State Opera House, Varna, Bulgaria, Europe

Interior, Operatic Society, Sorrento, Campania, Italy, Europe

View of The Usher Hall, Edinburgh, Lothian, Scotland, United Kingdom, Europe

The facade of the Opera House in Manchester, England, United Kingdom, Europe

A boat passes by the Sydney Opera House, UNESCO World Heritage Site, during blue hour, Sydney, New South Wales, Australia, Pacific

La Scala, Milan, Lombardy, Italy, Europe

Walt Disney Concert Hall, Architect Frank Gehry, Los Angeles, California, United States of America, North America

Fountain in front of Opera House, Riga, Latvia, Europe

Panoramic views of Sydney city at dusk including the Opera house, Sydney, New South Wales, Australia, Pacific

Exterior of the Opera House, Hanoi, Vietnam, Indochina, Southeast Asia, Asia

The skyline of Sydney at sunset, New South Wales, Australia, Pacific

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Walt Disney Concert Hall, Architect Frank Gehry, Los Angeles, California, United States of America, North America

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Gustav II Adolfs equestrian statue in front of the Royal Swedish Opera House, Stockholm, Sweden, Scandinavia, Europe

Walt Disney Concert Hall, Architect Frank Gehry, Los Angeles, California, United States of America, North America

Sydney Harbour Bridge and city skyline, Sydney, New South Wales, Australia

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

The Bayreuth Festspielhaus (Bayreuth Festival Theatre), Bayreuth, Upper Franconia, Bavaria, Germany, Europe

Opera House, Riga, Latvia, Europe

Opera House in downtown Ho Chi Minh City, Vietnam, Indochina, Southeast Asia, Asia

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Cyclist and pedestrian passing Teatro Massimo in early morning light, one of the largest opera houses in Europe, Palermo, Sicily, Italy, Europe

Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Roman Arena (Opera House), Verona, Veneto, Italy, Europe

Teatro Massimo, Palermo, Sicily, Italy, Europe

Max-Joseph-platz at night, with the statue of Bavaria's first king Max I Joseph in front of the National Theater (Opera House), Munich, Bavaria (Bayern), Germany, Europe

Staatstheater (Stuttgart theatre and opera house) at night, reflecting in the Eckensee, Schlosspark, Stuttgart, Baden Wurttemberg, Germany, Europe

Interior of the Margravial Opera House, UNESCO World Heritage Site, Bayreuth, Bavaria, Germany, Europe

Sydney Opera House, UNESCO World Heritage Site, at sunrise, Sydney, New South Wales, Australia, Pacific

Entrance to Teatro Massimo at night, one of the largest opera houses in Europe, Palermo, Sicily, Italy, Europe

The Opera House, UNESCO World Heritage Site, Sydney, New South Wales, Australia, Pacific

Morning light on Teatro Massimo, one of the largest opera houses in Europe, Palermo, Sicily, Italy, Europe

Staircase at Royal Opera House, Muscat, Oman, Middle East

Interior of Royal Opera House, Muscat, Oman, Middle East

Opera of Helsinki, Finland, Europe