Fort 't Hemeltje dates from 1877-1881 and is the last built fort of the Nieuwe Hollandse Waterlinie. It defended a strip of land that could not be flooded, and the 's-Hertogenbosch-Utrecht railway line. Today, Fort bij 't Hemeltje is largely used as office space for various entrepreneurs active in the field of sustainability. The fort also provides shelter for (breeding) birds and bats.
A walking route runs around the fort and there is an exciting spy route with fun assignments for children. In addition, the fort is regularly open to the public, for example during Open Monument Days. More information: www.staatsbosbeheer.nl