Harriton High School is a public secondary school in Rosemont, Pennsylvania serving portions of Lower Merion Township, Pennsylvania. The school is located on the Philadelphia Main Line. Harriton is one of two high schools in the Lower Merion School District; the other is Lower Merion High School. History In 1957, a new campus-style school was designed by architect Vincent Kling. It was situated on a portion of the plantation grounds belonging to Charles Thomson, son-in-law of Richard and Hannah Harrison, giving Harriton High School its name. Harriton High School opened in 1958. As of the 2009 school year, a new three-story building has been completed and the "campus-style" school largely demolished to make room for sports fields. The old Harriton High School consisted of five buildings connected by covered walkways otherwise open to the elements, a style unusual for the region that it shared with Welsh Valley Middle School, built at the same time; its buildings surrounded a mostly concrete courtyard nicknamed "the Tombs". The new school's design departs from this style greatly — a modern design that encompasses a simple and effective layout with a focus on natural light and an airy environment. Clubs and activities Science Olympiad Harriton hosts a successful Science Olympiad chapter. The Team has placed among the top 10 at the Science Olympiad National Tournament for 21 consecutive years, winning three national championships and 16 consecutive state championships in that span. Harriton competes in the Southeastern Region for Regionals and Pennsylvania for States. Although they have not run any invitationals in the past, Harriton participates in multiple of invitationals, including Conestoga, Twin Tiers (Athens), Solon, Wright State, Massachusetts Institute of Technology (MIT), Cornell, Upenn and Princeton. In the states competition, Harriton held the longest winning streak out of any Pennsylvanian team, athletic or not—placing first place at States for sixteen consecutive years (1997 to 2013). At the National competition, the team won the national title in 1995, 2001 and 2005. Additionally, the team has competed in the national competition from 1994 to present, 22 years. In more recent years, Harriton has not performed as well in Science Olympiad. In the 2021 season, the team got second at states, losing to Lower Merion High School. The team then went on to place 16th at the national tournament, the first time since 1993 that the team did not place in the top 10 at nationals. The 2020