First of all, I should mention that this picture was very difficult to capture since cameras can only expose the sky or the corridor, but not both at the same time, so in this case we use a photographic technique known as high dynamic range imaging (HDRI or HDR) which is a set of methods used in imaging and photography to allow a greater dynamic range between the lightest and darkest areas of an image than current standard digital imaging methods or photographic methods. HDR images can represent more accurately the range of intensity levels found in real scenes, from direct sunlight to faint starlight, and is often captured by way of a plurality of differently exposed pictures of the same subject matter… continue reading on Wikipedia.
This image is drawn on the reverse of the Q100 bill (see picture below). By the way, that is how we abbreviate Quetzales, Guatemala’s currency when writing amounts of quetzals. On the front of the Q100 bill you can see the portrait of Guatemala’s first bishop Francisco Marroquín and on the back the inside view of the building of Universidad de San Carlos de Borromeo previously Colegio Mayor located in La Antigua, Guatemala’s first university and the fourth in the American continent, better known nowadays as USAC, short for Universidad de San Carlos, Guatemala’s only public university. At present this building houses the Museo de Arte Colonial.
Here is the picture and description of the Q100 bill from Banco de Guatemala where you can find pictures and descriptions of all the Guatemalan currency in circulation at the moment.
Billete de cien Quetzales
El de cien Quetzales contendrá en el anverso la efigie del obispo y licenciado Francisco Marroquín, defensor de los indígenas y creador del colegio mayor; y en el reverso, el edificio (parte interior) de la Universidad de San Carlos de Borromeo localizado en Antigua Guatemala. Color dominante: sepia. (source: Banguat)