After a turbulent year marred by terror woes, Ebola outbreaks and a horrific series of airline disasters, many could be forgiven for saying good riddance to 2014 and gratefully ringing in a new year.
Across the globe, revelers looking for a respite from the gloom will converge on the beaches of Brazil, the shores of Sydney harbor and the potentially snowy streets of Las Vegas (yes, really) to welcome 2015. Here's a look at how the world is celebrating:
First up: Down Under. Sydney takes pride in being one of the first major cities in the world to welcome each new year, and it greeted 2015 in its trademark glittery fashion - with a tropical-style fireworks display featuring shimmering gold and silver palm tree pyrotechnic effects.
More than 1.5 million revelers crowded along the shores of the city's famed harbor in warm summer weather to watch the vivid eruption of light over the Harbour Bridge, Opera House and other points along the water.
At midnight, the crowd cheered as a 12-minute firework display was launched, the third and final light show for the night.
The festivities, however, come just two weeks after an Iranian-born self-styled cleric took 18 people hostage inside a downtown cafe. A tribute to two hostages killed in the siege was to be displayed on the pylons of the Harbour Bridge during the main fireworks display, and an extra 3,000 police officers were patrolling the city. Still, Sydneysiders were encouraged to celebrate as usual.
In New Zealand, a giant clock on Auckland's landmark Sky Tower structure counted down the minutes until the New Year, with a huge fireworks display launching from the tower at midnight.
Prayers in Indonesia. The loss of AirAsia Flight 8501 and a deadly landslide in Central Java are recent tragedies that have muted celebration plans in the Indonesian capital Jakarta. City Governor Basuki Tjahaja Purnama said the city would conduct prayers for the victims of the tragedies as well as host the annual Jakarta Night Festival.
Other Indonesian cities have opted to cancel or tone down their celebrations. Surabaya's Mayor Tri Rismaharini banned any kind of New Year entertainment in Indonesia's second-largest city, where most of the 162 people on the AirAsia flight that crashed Sunday were from. Hundreds of Surabaya residents, including young children, lit candles and braved a drizzle at a park to observe a minute of silence for victims of the crash.
"Let us pray for the grieving families of those on board the plane. Let us pray this will be the last tragedy for Surabaya," Rismaharini told the crowd.
Gun-happy Philippine police warned. Acting National Police Chief Leonardo Espina has warned that police in the Philippines who fire their guns during normally raucous celebrations will lose their jobs. Thunderous fireworks and gunfire normally leave communities shrouded in smog and gun smoke, and result in hundreds of injuries every year, including even deaths, some due to stray bullets. Since the New Year celebration began Dec. 21 more than 160 people have been injured.
In the southern Philippines, a bomb exploded at the entrance of a town market packed with New Year's Eve shoppers, killing four people and wounding at least 30 others. There were no immediate suspects, but Muslim rebels have been blamed for similar attacks in the region.
Bidding with the Chinese and shopping with the Japanese. Beijing will count down the New Year at an event in the Olympic Park designed to highlight the capital's bid to host the 2022 Winter Olympics. Skaters will perform and Olympic medalist figure skater Zhao Hongbo, Paralympics gold medalist swimmer Yang Yang and pianist Lang Lang will appear. Celebrations will also take place in Zhangjiakou, the city in neighboring Hebei province which is co-hosting the bid, and at the foot of part of the Great Wall in the northwest of Beijing.
Japanese stores generally close for New Year's Day, the country's biggest traditional holiday, so Wednesday was a day for shopping and stocking up for many, in preparation for the annual feast, called "osechi ryori."
At midnight, temple bells will strike 108 times, the number of evils, or temptations, as defined by Buddhism. There will be fireworks and bonfires around the nation as millions of people flock to neighborhood temples and shrines to pray for health and happiness.
Tossing refrigerators out of the window? In South Africa's largest city, Johannesburg, New Year's Eve has historically brought an increase in petty crime and vandalism. In the city's Hillbrow district there has been a strange, and dangerous, tradition of throwing unwanted items, like furniture and even stoves and refrigerators, out of high-rise apartments. To try to make the holiday safer in the inner-city, the Joburg Carnival was launched three years ago.
No splashy parties for Indian ministers. Indian Prime Minister Narendra Modi and his Cabinet are working both Dec. 31 and Jan. 1 in keeping with his promise of "good governance." Government ministers have canceled travel and celebration plans and have been asked to stay away from splashy parties and celebrations.
Big Ben bongs in the new. In London, hundreds of thousands of people are expected to line the River Thames for a fireworks display timed to the midnight bongs of Big Ben, Parliament's famous bell.
Revelers in the Scottish capital, Edinburgh, will flood the streets for Hogmanay, one of Europe's biggest year-end celebrations. The three-day festival - derived from Viking celebrations of the winter solstice - began Tuesday with a torch-lit procession of 35,000 people, including marching bands and troupes in full Viking regalia, and a fireworks display atop the city's Calton Hill.
At the Copa ... Copacabana. More than 1 million people are expected to flock to the golden sands of Rio de Janeiro's Copacabana beach, where two dozen artists and DJs will perform on three stages. Tourists and locals routinely party until dawn on the beach, staying awake to watch the tropical sun rise for the first time in 2015.
A massive fireworks display blasted from boats in the waters of the Atlantic Ocean will light the sky over the crowd, which traditionally dresses in all white, a Brazilian New Year tradition to bring purification and a peaceful year. Another tradition calls for partygoers to enter the sea up to their knees and jump over seven waves shortly after the New Year begins, for luck.
Watching the ball - or whatever - drop. New York will drop its Waterford crystal ball at midnight, in a tradition being increasingly copied across the United States with twists celebrating local icons. Las Cruces, New Mexico, is spicing up New Year's Eve with its first chili drop. In Miami, a 10-meter (35-foot) neon orange will light up, while Atlanta and Nashville, Tennessee, will drop a peach and a musical note, respectively.
Flagstaff, Arizona, celebrates with a 2-meter (6-foot) pine cone that drops from a downtown hotel. Nearby Prescott drops a 2-meter (6-foot) spurred cowboy boot in a nod to its western culture.
On Lake Erie in Port Clinton, Ohio, the community will carry on its tradition of dropping a 270 kilogram (600 pound) walleye made of wood and fiberglass. Michigan's Upper Peninsula will ring in 2015 with a nod to its mining history, with a replica of a pasty (pronounced PAS'-tee) - a baked pastry filled with meat and potatoes - to drop in Escanaba, one of the remote region's largest cities. The meal was popular by miners who immigrated to Michigan decades ago.
Amid the celebration, some cities are on alert for New Year's Eve protests related to recent police killings of unarmed black men. Boston's mayor and police commissioner urged activists to hold off on a planned "die-in." No plans for major protests were announced in New York, where the police department is still mourning two officers shot to death in a patrol car. But security will be tight, with more personnel than usual.
Snow in Sin City: What are the odds? Las Vegas isn't a place that expects snow, no less on New Year's Eve. So with meteorologists at the National Weather Service saying there's a chance that flurries might fall on the gambling capital's Strip and the hundreds of thousands of revelers ringing in the New Year, the agency warned visitors: dress warmly and wear comfortable shoes - it's going to be a cold night.
Organizers of the fireworks display say the show will go on, with or without snow. Forecasts in Las Vegas pin the area's chances for New Year's Eve snow at 70 percent along with a 0 degree Celsius (32 degree Fahrenheit) low. But for that to happen, meteorologist Chris Stachelski says there needs to be moisture in the air, and that's far from a certainty for the Strip.