Chichen Itza Site-Emblem T-Shirt, Mexico

Chichen Itza: El Castillo, the stepped Temple of Kukulcan with feathered serpent heads at the foot of its stair, above a fine-line drawing of the serpent of light that slides down the steps at the equinoxes. Printed beneath: the site name, country and coordinates.

• El Castillo with its serpent heads at the foot of the stair, drawn in colour
• Fine-line drawing of the equinox serpent of light
• Site name, country and coordinates printed beneath, from Pyramason's own catalogue
• Bella + Canvas 3001 unisex tee in black: 100% combed and ring-spun cotton, 4.2 oz, retail fit, sizes S to 2XL, printed to order

Why this site. El Castillo is a working piece of solar architecture, still casting its equinox serpent-shadow illusion roughly 900 years after it was built. That alignment is real, dated and observable. The geometry between Chichen Itza and its neighbours is a separate question, and there our engine finds nothing beyond chance. Both statements are true at once, which is the point: a monument does not need a hidden network to be extraordinary when its own architecture already performs on schedule.

Chichen Itza · Mexico · 20°40'59.0"N 88°34'07.0"W