For visiting Frankfurt, Germany, you may need a visa depending on your nationality. Germany is part of the Schengen Area, which allows visa-free travel for up to 90 days within a 180-day period for citizens of many countries. 

Types of Visa: 

1. Schengen Visa (Short stay) — For tourism, business meetings, or conferences (up to 90 days). 
2. National Visa (Long stay) — For work, study, or residence beyond 90 days. 
3. Airport Transit Visa — Required for travelers passing through German airports. 

Visa Requirements: 

1. Valid passport (minimum 6 months validity). 
2. Completed visa application form. 
3. Recent passport-sized photos 
4. Travel itinerary & accommodation details. 
5. Proof of financial means (bank statements, sponsorship, etc.) 

Visa Processing Time: 

1. Usually takes 15-30 days. Apply well in advance. 

For more details and applications, visit the German Embassy or Consulate in your country or check the official German visa portal: https://www.auswaertiges-amt.de/en