21 century museum of contemporary art Kanazawa in Japan designed by Leandro Erlich. The water is only 50cm deep and the deeper part underneath is the indoor museum.
20 Amazing Indoor Swimming Pools Design Ideas (With Pictures)
modern indoor swimming pool designs - Google Search
This pool has the feel of a private grotto.
Underground Spa. Sleek minimal white indoor pool. Elegant pool ladder.
Pool-Day at EAST, Beijing by swirehotels, via Flickr
ESPA at Corinthia Hotel, London. Photo by Richard Powers.
ESPA Vitality Pool at the Corinthia Hotel London
1508 London - The Luxury Design House made in London