Fort Meigs was built by General (and future President) William Henry Harrison during the War of 1812, when his attempt to capture Detroit and invade Canada failed. The Fort withstood two attempts by the British to capture it.
On the day I visited, there was a gathering of re-enactors there, representing periods from the War of 1812 to the Civil War to WWi and WW2.
Some photos from my visit.
The reconstructed fort
The main gate
Inside the fort. The earthen mounds are “transverses”, which protect from incoming artillery fire
Gun ports inside the blockhouses
One of the cannon batteries
A War of 1812 re-enactor and a Civil War re-enactor compare weapons
Civil War firing line