Today I went to Trier! Or, if you are Luxembourgish, to Tréier. Or, if you are French, to Trèves. Or, if you are an ancient Roman living in the first century BCE, Augusta Treverorum. Do you get the feeling that maybe, just maybe, this city has an interesting history?!
One of the most interesting things about Trier for this temporary Luxembourger is how easy -- and inexpensive -- it is to go there! Trains run frequently between Luxembourg City and Trier and the entire trip takes about an hour. If you have a transport pass or have already bought a ticket for in-country travel, you can buy a round-trip ticket from Wasserbillig (the last stop in Luxembourg) and get to Trier for around eight euros. So when you have a free Sunday afternoon and a handful of enthusiastic housemates ... why not go?!
Fun fact: the red house is called "Rotes Haus" (three guesses what that means) and was built in 1684.