Iquitos is well-known as being the most remote city in the world, only accessible by air or river.
For those wanting to experience the latter, there are several ways of going about it.
Amazon River on Local Transport
Fighting Cock Bags
Health & Safety in the Central Jungle
And then the kitchen blew up ...
Lima - Huancayo train line is 2nd highest in the world.
A remarkable engineering feat: begun in 1870 - finished in 1907.
Only runs intermittently, for benefit of tourists.
A must for rail enthusiasts.
I had been interested in the historic Lima to Huancayo train for some time, and can finally give a first-hand account of the journey.