This square's name may ring a bell for you if you are a Scot - it is named after an engineer, responsible for the construction of the Széchenyi chain bridge, who moved here for his work and eventually decided to settle down in Budapest for good.
If you are interested in geography, pay this square a visit, too. It is the zero point - the place, from which distance is measured - for entire Hungary.
Wikipedia (Hungarian) https://hu.wikipedia.org/wiki/Clark_%C3%81d%C3%A1m_t%C3%A9r
Address 1011 Budapest, Clark Ádám tér, Hungary
Coordinates 47°29'54.073" N 19°2'25.471" E