Part of London's Camden Market - which is big with visitors to the capital - went up in flames on Saturday. The fire could be seen for miles around.
One hundred firefighters were called in to put out the massive blaze. Flames were leaping 30ft into the air
The fire raged for three hours before the fire crews brought it under control. No-one was hurt.
Lots of people were on a night out in the area. They couldn't believe what they were seeing...
Shops, pubs and market stalls were affected by the blaze. People were moved out of nearby houses for safety reasons.
The affected area has been closed off. Investigators will now try to work out what started the blaze.