This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

An enormous and lavish Gothic church in Czechia.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Twelve natural mummies are displayed in the crypt of this former monastery school.

A church dedicated to the Mexican skeleton saint.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

The only castle in North America to ever house European sovereigns.

The place where World War I began.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.