subterranean travel and places,lazio region and vatican city,italy

The Colosseum in Rome has underground pits etc which were buried around 400-500 AD.

There are also many catacombs in the Rome city area.

In the Vatican city is a underground catacomb(i believe) where st peter is buried.

subterranean travel and places,alaska,usa

In 1996, archaeologists found inside  On your knees cave, 10,000  years old palaeoindian bones,Dna analysis showed a relationship to tribes  that lived/live down the western coastal areas of the american continent.

subterranean travel and places,andalucia/andalusia region,spain

The town of Antequera has some caves,possibly connected to the limestone landscape in theParque natural del torcal de antequera.

subterranean travel and places,lancashire,england,uk

Dogs holes caves

Eaves wood in silverdale has limestone caves
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subterranean travel and places,castile and leon region,spain

Sima de los huesos,near burgos is a cave where homo heidelbergensis fossils have been found,going back at least
500,000 years.
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