Top 5 intimidating grounds

In this climate of hostility deliberately stirred by Trump, the prospect of voting in some parts of the country this year may feel straight-up scary."We don't want the bad guys to know that we're out there," says Stewart Rhodes, founder of Oath Keepers, in a recruitment video.

(The group is also known for backing rancher Cliven Bundy in his standoff with federal authorities.) "We want them to worry that they're being watched."These promised armies of aggro poll protectors will almost certainly amount to nothing more than a fear-inducing fantasy come Election Day, not least because strict federal and state laws protect voters from intimidation.

Capacity: 81,338 Home team: French national team The only stadium in the world to host both a football and rugby World Cup final, the Stade de France saw its national football team winning on home soil in 1998.

Like many on the list, the stadium often has the biggest music acts in the world playing when sport's not on.

top 5 intimidating grounds-22top 5 intimidating grounds-80top 5 intimidating grounds-61

Real Madrid's president Florentino Pérez once said "we want to make the Santiago Bernabéu the best stadium in the world," and made upgrades a priority when he began his role.

And their was no let up, the atmosphere reaching fever-pitch shortly before kick off, continuing throughout the entire game, a relentless mass of male bodies moving and chanting.

Football — or "soccer", depending on where you live — is the most popular sport in the world, so it's no surprise the game is played in some of the biggest stadiums in the world.

Armando, but is commonly referred to as La Bombonera, meaning the Chocolate Box, a reference to its shape - one totally flat stand along one side and then 3 other sheer sides, rising up almost vertically, giving the stadium fantastic acoustics.

This, combined with Boca's frenzied support, make it a venue to fear for the club's rivals and has lead to Boca's fans being nicknamed La Doce, "the 12th man".