10 places in and around Heidelberg to spend a Sunday afternoon

Located at just one-hour driving distance from Frankfurt
international airport, Heidelberg is very popular among international tourists.
The town is also well-known for its university, which is ranked among top 10
universities in Germany. The university attracts a lot of international
students from all over the world. I was fortunate to get accepted for a
graduate program in Heidelberg university. During my residency of a few years
in Heidelberg, I had a chance to explore some places off the beaten track. This
blog post is about some known and some not-so-known places in and around
Heidelberg.