A room hidden behind a swinging shelf in the children's section.

This masterpiece of muralism depicts the rich culture of the people of Michoacán and their timeless connection to the land.

An ancient iron pillar in Delhi that seems to be rustproof.

A centuries-old fortress city lies in ruin.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

An extraordinary "City of Caves" carved from solid stone.

Centuries-old bridges grown from tangled roots.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Want to build a wind turbine? Secede from the nation.

An ancient cemetery with some historic bodies underfoot.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.