Fredericia's position next to the bridge between Funen & Jutland means that many of Denmark's other towns and cities are easily accessible by rail & by road. For a day trip or a few hours outside of Fredericia you could try some of the following...
Odense, a city located on the adjacent Funen island. Birthplace of fairytale writer H.C. Andersen.
Billund, the home of Lego, visit Legoland.
Kolding, a historically important Danish town.
Jelling, featuring the Jelling Stone.
Aarhus, Denmark's second biggest city in the north of Jutland.