The old Market Square is surrounded by a very attractive mixture of mediaeval, Tudor and Georgian houses.
St. Nicholas` Church is Norman to Early English, having been started around 1200, and has a 16th century brick tower. There is a restored 12th century churchyard cross.
Hedingham Castle is most impressive, with a keep, one of the finest in England, almost 100 feet high. It was built in the 12th century and was in the hands of the powerful De Veres, Earls of Oxford, for over 500 years.
The Colne Valley Railway runs steam trains over a mile of the track of the old line that ran between Marks Tey and Haverhill.