Here are key facts about Dresden in (subject, predicate, object) format:

**Basic Information:**
- (Dresden, is, capital of Saxony)
- (Dresden, is located in, eastern Germany)
- (Dresden, lies on, Elbe River)
- (Dresden, has population of, approximately 550,000)
- (Dresden, is, fourth-largest city in eastern Germany)

**Historical Facts:**
- (Dresden, was residence of, Saxon electors and kings)
- (Dresden, was called, "Florence on the Elbe")
- (Dresden, was heavily bombed in, February 1945)
- (Dresden, experienced, controversial Allied bombing raid)
- (Dresden, lost, historic city center in WWII)
- (Dresden, was part of, East Germany/GDR until 1990)

**Architecture & Landmarks:**
- (Dresden, contains, Frauenkirche)
- (Frauenkirche, was rebuilt after, WWII destruction)
- (Dresden, houses, Zwinger Palace)
- (Zwinger Palace, is, Baroque architecture masterpiece)
- (Dresden, contains, Semperoper opera house)
- (Dresden, features, Dresden Castle)
- (Dresden, has, historic Old Town)

**Culture:**
- (Dresden, houses, Old Masters Picture Gallery)
- (Dresden, contains, Green Vault treasure collection)
- (Dresden, is home to, Dresden State Art Collections)
- (Dresden, hosts, Dresden Music Festival)
- (Dresden, has, major technical university)

**Geography:**
- (Dresden, is located in, Elbe Valley)
- (Dresden, is surrounded by, Saxon Switzerland region)
- (Dresden, connects to, Prague and Berlin by rail)
