Minefields take up thousands of acres of land all over the world. Sometimes minefields are left behind from previous wars and innocent people are killed just by walking over one accidentally.

Lieutenant Daring and the Plans of the Minefields - 1912 was released on:

UK: November 1912

USA: 12 March 1913

Dangerous

For subsistence farming, minefields and graveyards.

Yes I believe there were minefields laid in England during WW2 (these have since been removed) - the threat of invasion was imminent and minefields were used to 'protect' strategic landing points.