Nakhcheer or Chal-Nakhjir is a cave situated in Markazi Province of Iran. It is a limestone cave approximately 70 million years old. It was discovered in 1989 and registered as a national monument in 2001. Its interior is made of crystals, dolomite sediments, stalactites and stalagmites.
Nakhcheer Cave in Markazi Province, Iran (Photo credit: IRNA)
Nakhcheer Cave in Markazi Province, Iran (Photo credit: MEHR)
Nakhcheer Cave in Markazi Province, Iran (Photo credit: IRNA)
Nakhcheer Cave in Markazi Province, Iran (Photo credit: IRNA)
More fascinating pictures: Payvand News of Iran | Photos: Nakhcheer cave
The other Iran 
very colorful
Reblogged this on hooksamui.
Just amazing…thank You so much for sharing !
You are welcome, please also check the Photos tag on this blog to find other beautiful or interesting pictures.
https://theotheriran.com/tag/photos/
I will post a lot more in the coming weeks.
I saw a cave a little like this in Halong Bay, Vietnam. Striking photos.