Tambomachay is an archaeological site of the Inca Empire, located near Cusco, Peru. An alternate Spanish name is El Baño del Inca (“the bath of the Inca”).
This is a small site, consisting of a series of aqueducts, canals and waterfalls that run through the terraced rocks. In addition to a ceremonial site, it may have served as a military outpost guarding the approaches to Cusco. Personally, I like the idea that it was a spa resort for the Incan political elite.
The name, Taybomachaym, possibly comes from the Quechua word meaning guest house.
When I left my hotel to go on the tour that includes this site, the weather was sunny and warm. Less than 2 hours later, clouds had moved in and skies had opened up to pour heavy, cold rain in Cusco. This site was in the mountain and saw much worse. Here the ground had hail.
NOTE: Much of this information is from Wikipedia