Château d'Annevoie in Anhée stands as the centerpiece of Belgium's only classical water gardens featuring approximately 50 fountains, cascades, water jets, and 20 ornamental ponds—a singular horticultural achievement combining French design with English and Italian elements. Built in the 18th century by the Montpellier family and developed between 1758 and 1776 by Charles-Alexis de Montpellier, the gardens harness water from the River Rouillon to create an enchanting landscape of jets and cascades. The Montpellier d'Annevoie family maintained the estate through ten successive generations until 2000, preserving both the château and its renowned gardens in remarkable condition. Today the beautifully maintained property welcomes visitors to experience these exceptional water gardens, offering a rare glimpse of 18th-century aristocratic garden design in Western Europe.