If you have visitors from abroad it may be a good idea to visit the Waterloo Battlefield Monument. The entire domain is more than 20 hectares large, includes seven sites, a big museum, a panorama and, of course, the famous Lion’s Mound. The completely redesigned museum is now very interesting and entertaining as Ineke Begg found on her recent visit. The site is open every day, including holidays. 

https://www.waterloo1815.be/en/