The Great Idgah is a lesser-seen piece of Agra's Mughal and post-Mughal religious geography, away from the Taj-focused riverfront circuit. Its broad prayer ground and mosque architecture show another side of the city's Islamic heritage.
It is mainly of interest to travellers who have time beyond Agra's headline monuments. Visit respectfully, avoid prayer times if you are only sightseeing, and combine it with nearby city stops rather than crossing town solely for it.