City Pillar Shrine
Somewhat in the shadow of grander nearby attractions like the Grand Palace and the Temple of the Emerald Buddha, this shrine is one of the most historically and culturally significant sites in the city. Just east of the Grand Palace compound, the City Pillar Shrine contains the foundation stone (Lak Muang) from which all distances in Thailand are measured. The stone is believed to be inhabited by a spirit that guards the well-being of Bangkok. The shrine is free to enter and frequented by locals who come here to pray, so behave and dress respectfully (knees and shoulders should be covered).