I've always had this in my list. I wanted to tour the Olympic Stadium in Berlin for the longest time, but only had the chance to do so recently. It's big, it's massive, and it's worth seeing. Here's why.
First of all, this was built for the 1936 Olympics in Berlin. Hence, it is a great example of large massive Nazi-style architecture. This actually reminds me of Tempelhof Airport, which I visited in the past. The floors are tall and the pillars are huge.
The above pictures show you the exterior. This is a large structure, so it takes a while to go around it.
The pictures above on the other hand show the sculpture and the other architectural features of this stadium. As you can probably guess from the statues, these sculptures display the Nazi aesthetic, with muscular Aryan builds. The pictures above also show you the bell as well as the towers.
Finally, here are shots of the interior as well as the rows of seats. I was actually surprised how clean the interior was, knowing that sporting events aren't really known for their cleanliness. The rows of seats were just so beautifully arranged, in my opinion.
This isn't on every one's tourist radar, even though Lonely Planet actually lists it. That being said, if you're an architecture fan, then this is a place to visit, as it is a very good exemplar of an architectural style that was once popular in this part of the world.