Just north a few minutes from downtown Nagasaki and Nagasaki station is the hypocenter of the atomic bomb drop.
I happen to visit Nagasaki during the height of the Sakura trees blooming, so I took a bunch of photos of the iconic place.
I try to visit the hypocenter, peace park, and the memorial museum every time I visit Nagasaki.
Here's a poorly written post from a long time when I first visited: September 17th, 2006
And here's another from a few years later: April 8th, 2008