Here are some indoor and outdoor photo spheres taken with the Google Photos Sphere application. You can click in the image to move into all directions to get a real 360° experience.
View from the Basilica of the National Vow (Basílica del Voto Nacional) in Quito, Ecuador
Grand Staircase inside Palais Garnier (Opera House) in Paris, France
360° Panoramic view Inside Santo Domingo Church (Iglesia de Santo Domingo) in Quito, Ecuador
You can find more information about creating Photo Spheres and how to share them with the world at https://www.google.com/maps/about/contribute/photosphere/.