It's a good idea to keep your camera handy, because you never know when history is going to be made.
These 22 photographers were in the right place at the right time, and captured images that proved to be really lucky.
1. Reynaldo Dagsa shoots his killer
Dagsa was a Filipino politician, and he snapped this photo while celebrating with his family on New Year's Eve, 2011. The men in the picture are criminals who assassinated Dagsa moments later, but they were caught thanks to the man's incredible timing.
2. No way out
Two men trapped on a windmill 260 feet above-ground embrace in 2013. Neither made it off the structure alive.
3. The Sultana
Paroled prisoners pack the deck of this paddle-wheeler ship in the final photo before it was destroyed in 1865. The explosion of three of the ship's boilers killed more than 1,200 people.
The Sultana explosion is still America's deadliest maritime disaster.
4. Robert Overacker's big jump
Stuntman Robert Overacker's jump over Niagara Falls in 1995 was only meant to raise awareness for homelessness. When his parachute failed to deploy, he fell over 160 feet to his death.
5. Japan Airlines flight 123
A passenger snapped this photo moments after the massive Boeing 747 suffered an explosive decompression. The plane soon crashed into a mountain, killing 505 passengers and 15 crew members. The 1984 accident is still the deadliest single-plane crash ever.
6. Five feet from destruction
A pair of Spanish tourists pose in Omagh, Ireland in 1998. The red car beside them contains a bomb which exploded minutes later, killing 29 people.
Ironically, the man and the young girl in the picture both survived, while the cameraman was killed.
7. Too close for comfort
After noticing a black bear had been following him, hiker Darsh Patel and his four friends stopped to take pictures of the animal. They let the animal come within 15 feet of them before running away, and Patel wound up snapping a photo of his killer.
8. Air France 4590
This photo captures the dramatic moment when a Concorde airplane took off for the final time in 2000. A piece of debris had punctured the plane's fuel tank, and it crashed into a hotel shortly afterwards, killing 100 passengers, nine crew members, and four of the hotel's customers.
9. Before the wave
This photo was recovered from British tourist Deborah Garlick's camera months after the 2004 Boxing Day tsunami. The final shot on Garlick's camera roll shows her lounging on Maya Bay beach, Thailand, likely only moments before the killer wave struck.
10. Last glimpse of MLK
We'll be honest: this photo was snapped a day before Martin Luther King Jr.'s assassination in Lorraine, Tennessee. But it's still eerie to see him standing in the same place he would be shot and killed less than 24 hours later.
11. The team waves goodbye
In this photo, the 1961 U.S. Olympic figure skating team smile for the cameras before boarding a plane for Brussels. When it crashed, all 18 members on board were killed.