Certiﬁed photos by travelers like you. What's this?
Nearing exit, this would have been a number of tunnels on top of each other that caved in, were reinforced and made into larger walkways. You can see by looking up how near we really are to the surface..
Our guide showed us this view to understand the construction of the tunnels which were made without plan in early stage. The haphazard construction put the workers and buildings above at risk to cave ins.
Some content licensed under a Creative Commons Attribution 3.0 License.
© 1997–Mon Dec 05 07:06:52 PST 2016 Viator, Inc. CUR015 - 330204 All rights reserved. Viator is a registered trademark of Viator, Inc.
is a Service Mark of Viator, Inc. Travel with an Insider is a Service Mark of Viator, Inc.
Use of this website constitutes acceptance of Viator's Terms & Conditions.