What's up with U.S. presidents going to Berlin and making really good speeches? They did it all the time.

Although Kennedy craftily didn't name the Soviet premier who he was mad at—maybe he just couldn't pronounce "Khrushchev"? can "Khrushchev" even be said in a Boston accent?—Ronald Regan wasn't holding back.

Reagan's 1987 Berlin speech does name names: he famously yells at the then-Soviet leader, "Mr. Gorbachev, tear down the wall!" That made a nice bookend to what Kennedy started in 1963.

And you know what else makes a nice bookend? A big chuck of concrete from the wall that they dismantled a few years after Reagan's visit.