Kansas — definitely not the first place that comes to mind when it comes to photogenic geology. But it does have some gems tucked away here and there.

Rock City is a small park about a half-hour’s drive north of Salina, run by a non-profit corporation, and home to hundreds of spherical limestone boulders:

Admission costs a mere $3 (cash only), and it’s also got some beautiful local plants and birds — so a great quick side-trip if you’re ever heading through Kansas on I-70.