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Three historic railways comprise a World Heritage site recognizing their importance in trade and technological development. Still in use today, the Darjeeling Himalayan Railway, Nilgiri Mountain Railway, and Kalka Shimla Railway were all begun or completed in the 19th century.

from Mail Online

Into the depths of the earth: Cave network in the heart of Vietnamese jungle is so large its end is yet to be found

This recently discovered cave in Vietnam is massive beyond description. An entire forest is growing inside! There are no words to describe the enormity, and beauty of this natural wonder. The Empire State Building will fit inside!

from Oddee

10 Most Fascinating Castles and Palaces

Mont Saint-Michel: a Medieval Castle on a small island...zombie apocalypse? just blow up the road