People, who have ever been at the West Point Foundry, know there's a lot to see at the two-century old site.
Now, a new mobile tour can help people along the way.
Hudson Valley Conservation group 'Scenic Hudson' says the tour helps visitors really experience the sights and sounds of the ironworks.
People can look at the map online before you head out to plan the tour, of course.
But the neat thing about this is that if you're at the site, people can use the tour to navigate and find out more about each stop.
The foundry made steam engines, locomotives, and weaponry more than a century ago, and it is right across the river from West Point.
For a link to the online mobile tour head here: www.foundrytour.org