This collection of Christian churches are nestled in the cracks of a rocky hill in Northern Nigeria.

Germany's tiniest institution of education.

An entire town in Haiti memorializes one man and his historic revolution.

A museum at a Chinese university is the first of its kind in the country.

The tallest unclimbed mountain in the world remains poorly charted out of respect for local spirits.

This windmill was used for well over a century.

The monument marks where Simón Bolívar and his Spanish adversary Pablo Morillo met to have a drink together.

An expansive collection of vehicles and other paraphernalia marking the history of firefighting.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.