I love the Buddha footprints. In places where reputation has it that the Buddha actually walked around, the locale has the privilege of building a temple around a "Buddha Footprint." This one is typical, measuring about four feet in length.
This one is in Sukhothai, near the Old City, and it's the first time I've seen coins thrown in for luck like coins in a fountain in Rome. I have seen the gold-leaf "toenails" before, that's old school. The coins are a nice Farang touch.