Frankfurt
Frankfurt, Germany, which was once a city-state for 500 years before being absorbed into Prussia in 1866, is historically one of the most significant locations within the Holy Roman Empire. So it’s no surprise that Frankfurt has some fascinating background – including being one of the key places within the Holy Roman Empire.
Unfortunately, some tourists appear to be very disappointed to discover that it’s just a regular city at the end of the day, with parts dating back and others being incredibly contemporary. It is a global business center, which implies there isn’t much conventional sightseeing if that’s what you’re looking for.