The 50-foot illuminated cross at the Salt Cathedral of Zipaquira, Colombia, seems to float.Photo by Joshua Morin for The Washington Post.

Visitors pass a sculpture inside the Salt Cathedral of Zipaquirá in 2007. "I found it to be incredibly impressive," said Reagan Jeffries, a Dallas-area schoolteacher, after touring the site.

The great salt mountain of Zipaquira, 31 miles north of Bogotá, has been mined for 400 years and still looks good for 1,000 more. On working days, the mine is a clangorous labyrinth where ...

One of the main spots to visit is the Salt Cathedral of Zipaquirá, considered one of the modern wonders of Colombia for having been carved in salt. While the ride is not as spectacular as that of ...