A Russian tourist was struck and killed by lightning while on the summit of Huayna Picchu in Peru:
http://story.news.yahoo.com/news?tmpl=story&ncid=757&e=1&u=/nm/20041021/od_nm/peru_lightning_dc
If you're familiar with the postcard view of the ruins at Machu Picchu, Huayna Picchu is the rocky spire that sticks up at the south end of the ruins. I climbed
Huayna Picchu a few years ago when we toured Peru. It's a great scramble up some rather airy Inca steps and worth the couple of hours if you're ever on the site,
and the weather is cooperative.