Places Jochen Duckeck Wants to Go

A subterranean necropolis blending Egyptian, Hellenic, and Roman traditions and art styles.

This old Estonian mine has been kept like a sprawling time capsule of the local shale industry.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

Climb right into the heart of this colorful Iceland volcano.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

Bizarre Cavern.

Ancient Greek oracle of the dead.

This sanctuary became synonymous with fear and terror in the ancient world.

Prehistoric humans once used this sprawling lava tube network in the Saudi Arabian desert as shelter.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

A marvel of Byzantine engineering under the streets of Istanbul.

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

Limestone grottoes turns everyday objects into stone.

Engineering ingenuity during the battle of Gibraltar.

Walk through living pictures and music in the Cathedral of Images.

Europe's only Temple of Mithras located in a natural cave.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

The only natural cave bath in all of Europe.

Thousands of medieval skeletons lie just beneath Kranj’s main square.

This cave complex might provide a link between the Neolithic and the Classical Greek period.

Its dark depths conceal millions of rare, delicate crystal formations.

Explore a subterranean wonderland with Pennsylvania’s largest stalagmite.

A former salt mine is now a cool picnic spot for families and asthmatics.