Quest Sunday

Around the world, there are extraordinary building mistakes. Design teams and experts analyse what went wrong and how engineers are fixing them.

Stel and Jess begin their search for the lost city of Atlantis. In Bulgaria, they uncover mysterious gold treasure and evidence of an ancient catastrophe

Stel and Jess explore underwater ruins off the coast of Greece. Their quest to find Atlantis leads them on ancient trade routes and into the heart of a volcano

The manufacture of dragsters, salsa and water-pumping windmills

The manufacture of decorative sombreros, salad dressings, cap guns and regenerative medicine

Buying goods from home

Buying goods from home

Henry Cole makes good money restoring an antique pine sideboard in Sheffield, but has less success with a pair of old brass jugs, while Simon converts a staircase into shelves