The church of Holy Trinity in Rothwell has a bone crypt housing the remains of 2500 men, women and children.
A BBC News story reveals an unexpected fact about it:
Skulls and bones stored under a church date from 1250 to as recently as 1900, tests have revealed.
Holy Trinity Church in Rothwell, Northamptonshire - home to one of only two 13th Century crypts in the UK - contains the remains of 2,500 people.
Radio carbon dating found some skulls were older than first thought.
But scientists from the University of Sheffield, who "assumed the ossuary was a medieval thing", were also surprised to find bones from the last century.
"It seems people continued to put skulls and bones down here, not only into the post-medieval period but even as late as around 1900," Dr Lizzie Craig-Atkins said.I have never found the courage to enter it, but the crypt is open to the public on Sundays from 2.30pm to 4.30pm from Easter to the end of September.