Boo! Zombies and Ghosts Worldwide Celebrate Halloween

Tami Varma and her brother Robin pose in coffins at the Bran Castle, in Bran, Romania, Monday, Oct. 31, 2016. They are the grandchildren of Devendra Varma, a scholar of English Gothic tales and an expert in vampire lore. The Canadian brother and sister are passing Halloween night curled up in red velvet coffins in the Transylvanian castle that inspired the Dracula legend, the first time in 70 years anyone has spent the night in the Gothic fortress, after they bested 88,000 people who entered a competition hosted by Airbnb to get the chance to dine and sleep at the castle in Romania.

A shop is decorated to mark Halloween in Madrid.

A woman dressed in a Halloween costume poses for a photo before participating in the zombie walk in Essen, Germany. Hundreds of young people celebrate Halloween at Germany's biggest horror walk through the city center.

People take part in the Halloween celebrations in Churriana near Malaga, Spain.

Professional dancers dressed as zombies perform Michael Jackson's Thriller in front of Granary Square to celebrate Halloween in London. The 100 dancers performed two full-on flash mobs.

Competitors wear their costumes during the annual Halloween festival at the George Hay Park in Johannesburg. The local community organized the event where families come dressed up in their best outfits. Judging on the stage then happens with various winners announced each night.

Candy inspired by Republican Presidential candidate Donald Trump and Democratic Presidential candidate Hillary Clinton is pictured at 'It's Sugar' candy shop in Pasadena, California, Oct. 30.

A person dressed as Democratic presidential nominee Hillary Clinton stands in the crowd at a campaign rally in Cincinnati.

Participants in costume pose for a photograph as they ride on a train after Halloween celebrations at Shibuya district in Tokyo, Japan.

A woman takes a selfie with a fake skeleton next to her husband ahead of a Halloween parade at Happy Valley park in Beijing, China.

A young child takes part in the Hoboken Ragamuffin Parade to celebrate Halloween in Hoboken, New Jersey.

Rojan Pandey and Yusef Mousa Aryouib, dressed as Power Rangers, place their hands over their heart as they recite the Oath of Allegiance during a Halloween-themed citizenship ceremony at the U.S. Citizenship and Immigration Services office in Fairfax, Virginia. Thirty-one children representing 22 countries celebrated their new citizenship during the ceremony.

Performers participate in a Halloween event at the South Lawn of the White House in Washington, DC. President Barack Obama hosted the event for local children and children of military families for trick-or-treating at the White House.