Mother's Nest at Indianapolis Zoo has 3 private nursing rooms with comfortable chair and table and an open diapering area with sinks. Inside are thus temperature controlled (perfect for hot summer days).
In Australia - The Sex Discrimination Act 1984 (SDA) makes it unlawful to discriminate against a person because of their sex, gender identity, intersex status, sexual orientation, marital or relationship status, family responsibilities, because they are pregnant or might become pregnant or because they are breastfeeding.
A woman has the right to breastfeed in public places, where ever she is allowed to be with without harassment or discrimination. This includes using a breast pump or expressing milk by hand.