![horses on Assateague Island National Seashore](https://static-ssl.businessinsider.com/image/55354ffe6bb3f7ea678b4568-1200-924/horses-on-assateague-island-national-seashore-1.jpg)
Shutterstock
Wild horses roam freely at the Assateague Island National Seashore.
The US $4 oversees 401 areas throughout the US and US territories and has nearly 300 million visitors each year.
In honor of $4which runs through April 26th, we found some spectacular pictures of national parks, monuments, seashores and heritage areas around the country that will make you appreciate how beautiful the US really is.
Anmargaret Warner contributed to an earlier version of this post.