Village pound or pinfold was a feature of most English medieval villages.

Used to hold stray sheep, pigs and cattle until they were claimed by the owners usually for the payment of a fine or levy.

https://en.wikipedia.org/wiki/Animal_pound 

A plaque on the bench pictured states

"GELSTON PINFOLD PROJECT

TO COMMEMORATE THE 

NEW MILLENIUM AND THE

QUEEN'S GOLDEN JUBILEE" 

DB 23 July 2018 

Blue plaque on the outside of the pinfold facing village green.

DB 23 July 2018 

"Gelston village cross is a good example of the stepped base of a medieval standing cross.

Situated on the village green, it is believed to stand in or near its original position"

https://historicengland.org.uk/listing/the-list/list-entry/1009217 

DB 23 July 2018 

"The Wesleyan chapel was built in 1839, closed in 1958, and is now a private residence"

https://en.wikipedia.org/wiki/Gelston,_Lincolnshire 

DB 23 July 2018 

Top two lines of text have been obscured but the full inscription appears to read :-

"WESLEYAN

METHODIST

CHAPEL, 1839" 

DB 23 July 2018