secret tunnel

The remains of more than 130 secret gates on the Great Wall of China, one of the great wonders of the world, have recently been revealed.

A secret tunnel has surfaced as workers dig the ground to build a new railway line at the station.

House renovation historians have found a 360-year-old passage hidden in a secret room.

Archaeologists discovered an ancient tunnel built by the Temple Knights knights under the coastal city of Acre.

Around the beginning of the 16th century, the invaders from Spain were the ones who discovered Kukulkan temple in Mexico's Chichen Itza ruins.

After excavating a castle in central Turkey, archaeologists discovered a secret tunnel built by the Hittites about 4,000 years.