If you're interested in WWI history, Ypres [French - Ieper in Dutch] in western Belgium was the center of trench warfare. The town and surrounding area was flattened by years of artillery bombardments, yet the town was completely rebuild to exacting specifications, and you wouldn't know that from looking at the "old" buildings. The Flanders Battlefield Tour (FBT) is a 4-hour tour that allows you to visit:
1) museums, 2) trenches, 3) underground bunkers, 4) field hospitals, 5) church crypt where Hitler was patched up after being wounded, 6) mine craters, 7) pill boxes, 8) cemeteries, etc. It's the best if this type of history is your interest. But be prepared to do some walking (while side-stepping sheep dung and shell craters in the fields). Wear comfortable shoes and mosquito repellant in the warmer months. Don't miss the daily tradition at 8pm at the Menin Gate that honors the tens of thousands who died, and beyond the Gate are the medieval walls of Ypres. It's a great and scenic walk on a nice day. The food & beer [Bush beer is 12% alcohol) in Ypres are outstanding!!
If you own or manage Flanders Battlefield Tours, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.