Frankfurt

Zeppelin museum – Largest collection on airship travel in the world

Romerberg Square- Site of markets/fairs/tournaments/festivals/elections/coronations/etc. Home of City hall over 600 years

Mannheim – Birthplace of inventions: tractor, rocket plane, first motorcar

Speyer Cathedral – the jewel in the crown of Romanesque architecture

Castle Road – Over 60 magnificent castles

Castle of Heidelberg

Karlsruhe Palace

Baden-Baden Town – Spa Town

Stuttgart Old and New Castles

Hohenzollern Castle

Mercedes Benz Museum

Porsche Museum

BMW museum

Konstanz

Niederburg 

Munich

Munich Residenz – Museum-Up to 90 luxuriously decorated rooms-previously seat of government/residence of Bavarian dukes, electors, kings from 1508-1918