This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

Possibly the world's smallest museum is home to one exhibit that sheds light on the capital city's dark criminal history.

The location of a citizen uprising that led to a gruesome act of mob justice.

The final resting place of soldiers' loyal canine companions.

The artwork mysteriously appeared within an Edinburgh cemetery.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The fountain marks the area where hundreds of accused witches were burned at the stake.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.