Roman Baths (Bath) It comprises a southward extension to the Grand Pump Room, in which some remains of the 17th-century Queen's Bath are merged. The museum houses artifacts from the Roman period including objects that were thrown into the Sacred Spring, presumably as offerings to the goddess. These include more than 12,000 Roman currency coins, which is the largest collective votive deposit known from Britain. A gilt bronze head of the goddess Sulis Minerva, which was discovered nearby in 1727, is displayed. An audio guide is available in 12 languages. The Bath Roman Temple stood on a podium more than two metres above
Aphanizomenon flos-aquae samples exceeded the safety value of 1 µg microcystin per gram. University professor Daniel Dietrich warned parents not to let children consume "A. flos-aquae" products, since children are even more vulnerable to toxic effects, due to lower body weight, and the continuous intake might lead to accumulation of toxins. Dietrich also warned against quackery schemes selling these cyanobacteria as medicine against illnesses such as attention deficit hyperactivity disorder, causing people to omit their regular drugs. A Canadian study studying the effect of "A. flos-aquae" on the immune and endocrine systems, as well as on general blood physiology, found that eating