A few blocks away from Frida and Diego's house, you can find the Museum of Trostsky, in what was to be the last house of the Bolshevik leader:
The Russian politician is buried here:
I guess you all know that Trostsky sought refuge in Mexico and was murdered by a Stalinist agent, Ramón Mercader, A.K.A Jackson Mornard, on August 1940.
Before that, he suffered another murder attempt by the Stalinists, led by painter David Alfaro Siqueiros.
On this attempt -the rounds of fire caught Trotsky's feet, but no other part of his body, an American bodyguard was abducted and killed (allegedly by Siqueiros). There is this plaque at the museum: