Ivy Town is a suburb in the United States.
Ivy Town is known for its Ivy University. The education is very prestigious in Ivy Town as Laura Hoffman stated the waiting list takes years. In 1975, a young Martin Stein was at the Ivy Town university and ended up inventing a particle attraction device. 
In 1975, Martin Stein was studying alpha particles in the Ivy Town university. In October 1975, he encountered, unbeknownst to him, his future self, alongside Sara Lance and Jefferson Jackson. After his reluctancy to give his particle device, he was knocked out by Sara Lance. Realizing this stopped Martin's marriage, Rip Hunter made sure that Martin would still meet his future wife Clarissa at a lecture.  In 1988 the town was visited by time traveling Legends in order to save a young Ray Palmer from an untimely death at the hands of NSA Agent Smith and his posse for harboring a baby Dominator nicknamed Gumball.
DC's Legends of Tomorrow
Behind the scenes
- In the DC comics Ivy Town is a famous location, along with its Ivy University.