Tunnels

This dark, damp, perilous tunnel is the only passage from north to south Tajikistan.

This former sugarcane transport tunnel is now a portal to a lovely beach.

This small road tunnel is the only place where you can cross beneath the Erie Canal.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

This abandoned railroad tunnel is now home to a micro-colony of bats and a ghost train.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

These passages carved from the Antarctic ice hold strange shrines to the harsh southernmost climes.