How much does it cost to install a swimming pool?

From just a few hundred $$ to 4 million. What size, what equipment, do you want it automated, what type of decking, fountain, spa, other water features, what part of the country, lighting, no lighting, multiple skimmers, auto feeders, auto cleaners, salt system, uv system, slide, dive board, infinity edge, built on a steep grade, built on the beach (water table), beach type entry, wet bar, bbq at pools edge, plaster, vinyl, pebble tech, tinted plaster, auto pool cover, indoor or outdoor, covered, not covered, you get the idea. etc.