The last few days involved much walking. The old part of Vilnius is actually quite compact.
If you walk in one direction, you'll get to the castle  (seriously) and this stuff:

If you walk in another direction, you'll get to the shopping district.
If you walk the other way, you'll get to the gates of the Old City

The old city, coincidentally, is also where the Vilnius ghetto was. It's strange to look at the perfect cobblestone streets and lively cafes and shops selling amber trinkets and think of what it all might have been like not so long ago.