Queenston Heights Park is home to the memorial monument to Major-General Isaac Brock, Commander-in-Chief of the British forces in Upper Canada, who was killed by a sharpshooter's bullet during the Battle of Queenston Heights .

A simple 40-metre stone monument, erected by the Province of Upper Canada to commemorate Brock, was destroyed with a massive blast of gunpowder in 1840. It was alleged to have been set off by an American sympathizer with the Upper Canada Rebellion. Today's more impressive 56-metre monument, dedicated in 1853 and finished in 1856, marks the gravesite.

Visitors can climb to the top to an small observation deck 130 foot high on a narrow spiral staircase for a spectacular view of the Niagara Gorge and the Lower Niagara River.