Indoor/greenhouse, with and without augmentations.
I have 6 orchids- phal, oncidium, gastrochilus, cattleya, zygopetalum, and monnierara-that grow inside an indoor greenhouse. The greenhouse is about 6 ft tall, 3 ft wide, and a couple feet deep. It stands in front of a window. The top shelf are for medium light plants and middle shelf, high light plants. The middle shelf not only receive natural light from the window, but also has a T5 bulb. The top shelf has paper along the back, to filter some light. Right now, nothing is on the bottom shelf, because I cannot grow anything that gets too tall and the T5 burned out. So that just holds a watering can and some terrarium tools.
On the outside of the greenhouse doors, I hang two mounted orchids.
I also have another phal adjacent to a window in my house. At my office, I have two phals and one oncidium that just receive natural (and office) light.