Heidelberg

On Karl-Theodor Bridge.
Heidelberger Castle(on the hill). Its construction began early in the 14th century. Twice destroyed by war(1622 and 1693) and once by nature(lighting in 1764) it has the mix of styles ranges from Gothic to High Renaissance.
Rathaus of Heidelberg.
14-century Heiliggeistkirche (Holy Spirit Church), now a Prostestant church.
Neckar River. Heidelberg has the oldest university in Germany and 32000 tourists visit this town every day during summer.