View of the Greek/Roman Neptune Pool at Hearst Castle owned by William Randolf HearstState Historical Monument

Gellert Baths. Interior with bathers in swimming pool lined with carved pillars and with domed glass roof above.

Gellert Baths. Interior with bathers in swimming pool lined with carved pillars and with domed glass roof above.

Uros Floating Islands. Captive flamingo standing on one leg alone in a pool of water.

Hippo in pool of Nile cabbage weed

Waterfall cascading from plateau into plunge pool below Cherrapunjee

House of the Republic. Palace of former Communist president Nicholae Ceausescu. Exterior facade with pool and fountain in the foreground.

View over beach side hotel pool with clear blue sea beyond

The Natural History Museum with statue in pool in the foregroundRingstrasseRing Boulevard

Karlskirche aka Church of St Charles Borromaeus. View of the facade showing twin columns and domed roof with pool in the foreground

Two men sitting in a shallow swimming pool with Oil derrick in the background

Laut Sea Villas on stilts seen over blue pool in the foreground