This is located outside the Mainz - Römishes Theater station - the station platform is right where…read morethe actors and performers would stand. This was once the largest Roman theater north of the alps, with seating capacity for up to 10,000. First uncovered in 1884 during the construction of the South Station, sections were destroyed to make way for train tracks. When they finally realized that they were part of an ancient Roman theater, wartime activities prevented further excavations. Archaeological work only resumed in 1998 with the support of donations, sponsorships, and volunteers from Mainz

Whenever visiting a city for the first time, if there's an observation deck, I think it's a…read morefantastic way to begin to explore your surroundings. Seeing a city from a helicopter-level view puts the whole city into perspective. So we did just that upon arriving at Frankfurt. Located in the financial district of Frankfurt, finding this large skyscraper was a little confusing but we realized we were at the right place when we saw a small line outside. Depending on the time of day you visit, and whether it's a weekend, you may have to wait a little while. The line went by fast for us. Once you get inside, and you pay a reasonable fee (less than 10 euros), you'll take an elevator to the top to reach the observation deck. Take a couple of pics, enjoy the views, and you'll be on your way. It's a quick attraction that you can get out of the way in 30 minutes or so unless there's a long line. Main Tower is the third most popular attraction in Frankfurt according to TripAdvisor. And the 4th tallest building in Germany. Enjoy the views!

If you've been up to an observation platform on a big city building before, they all do seem to be…read moresimilar but still fun. The Frankfurt main tower is no exception with some great views and an overly slow security and ticket process which you should allow extra time for. There are bathrooms up top and people are all friendly and willing to help take photos.