LONDON—During a 14-month campaign of terror in the mid-1970s, a radical group of the Irish Republican Army, known today as the Balcombe Street terrorists, killed 35 people in a series of around 40 bomb attacks. Now newly released records reveal that the group planned far worse, hoping to murder numerous members of parliament and target famous, well trafficked landmarks around England, including many art museums.

The records, which have been sealed for the past 36 years, reveal that the group hoped to attack the National Gallery, the Tate Gallery, and the Queen’s Gallery, which houses the Royal Collection of art, books, furniture, and other valuables at Buckingham Palace. Other landmarks around the country, including the London Stock Exchange and wax figure museum Madame Tussauds were targeted, as well.

Thankfully for the people and the art that would have been placed in danger, police apprehended members of the group before they could carry out their further attacks, and many remained in jail until 1999, when they were freed as part of the Good Friday Agreement.

Read more at the Telegraph.