Kölner Dom (Cologne Cathedral)
Köln, Germany, 1987
Of all the great Gothic cathedrals, my personal favorite is the cathedral at Cologne, which began construction in the 13th century, but was not completed until the 1880s.
It dominates the city's skyline, and for tourists to the beautiful city on the Rhine, to see the giant cathedral, all you need to do is step outside the city's main train station, and there it is.