Final answer:
El Dia de Los Muertos is the holiday that involves candlelight vigils and people dressed up like fancy skeletons.
Step-by-step explanation:
The holiday that involves candlelight vigils and people dressed up like fancy skeletons is El Dia de Los Muertos. This holiday, also known as the Day of the Dead, is celebrated in Mexico and other Latin American countries on November 1st and 2nd. During this time, families honor and remember their deceased loved ones. Candlelight vigils are held at cemeteries and people dress up in colorful costumes and traditional skull makeup as a way to honor and celebrate the lives of those who have passed away.
Learn more about El Dia de Los Muertos