Mysterious Underground Cities and Naours
Wieliczka Salt Mine
Lalibela
Beijing Underground City
Orvieto and Burlington
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Eight astonishing settlements:

Naours, Wieliczka Salt Mine, Lalibela, Beijing Underground City, Petra, Orvieto, Burlington

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Wieliczka salt mine is also known as the...

“Underground Salt Cathedral”

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Lalibela is...

a UNESCO World Heritage Site.

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The Beijing Underground City in Beijing is located in...

China

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“Burlington Bunker,” as it was codenamed, was first built in...

the 1950s

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Where is located Naours underground city?

in northern France

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Poland’s Wieliczka Salt Mine is a massive subterranean complex of rooms, passageways and statues located...

on the outskirts of Krakow

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In the 12th century A.D., a devout king ordered the construction of...

11 eye-catching Christian churches

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What were briefly opened as a tourist attraction in the early 2000s.

tunnels

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The Italian hilltop town of Orvieto is known for its...

white wines and picturesque architecture

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How many tunnels and  man-made rooms are in Naours?

two miles of tunnels and more than 300 man-made rooms

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When they weren’t digging for “white gold,” the workers also used the mine’s salt crystal deposits to build a stunning collection of...

chapels, chandeliers, statues and bas reliefs

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The most iconic building is...

Church of Saint George

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Where was  a skating rink and a 1,000-seat movie theater?

Beijing

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Orvieto’s underground city was also frequently employed as...

a hiding place

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It had enough room for 3,000 inhabitants and included its own...

chapels, stables, wells and bakeries

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The Wieliczka mine stopped producing salt in ...

2007 after some 700 years in operation

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The construction of Lalibela took just...

24 years

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Who did order the construction of a mammoth fallout shelter beneath their capital of Beijing?

the Chinese government

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the Burlington facility remained partially operational until...

2004, when it was finally decommissioned and declassified.

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When did the site begin its life as part of a Roman quarry

around the third century A.D.

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a popular tourist attraction in Poland

The Wieliczka mine

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...is now considered a sacred site for the Ethiopian Orthodox Church

Lalibela

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"It consisted of fallout-proofed rooms and tunnels that snaked their way underground over an area of several dozen square miles" ,Is it in Beijing Underground City or Petra

Beijing Underground City

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As recently as World War II, people were still using certain sections as ...

bomb shelters

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