A real find just outside Cheonan, which is about an hour south of Seoul on the KTX express train, the Taejo Buddha is one of the largest seated Buddhas in Asia. There is also a temple to explore here, and visiting it also features good exercises...it's a steep uphill climb with stairs. Insiders tip: there is a public bus from Cheonan that ends here. Just check your guidebook or ask at at your hotel or hostel. I'd offer the bus number I took, but I'm told the bus numbers often change.