Zipaquirá Salt Cathedral
The hauntingly beautiful underground salt cathedral at Zipaquirá is one of Colombia's most fascinating attractions. The cathedral was born from an old salt mine, dug straight into a mountainside. Opened in 1995, it is 75m (246ft) long and 18m (59ft) high, and can accommodate a staggering 8400 people. Visits are by one-hour guided tours.