The Felsenkirche, a church built into a natural niche in the rocks, rises high above the houses of Idar-Oberstein, Germany. Where else is there a church that can only be entered through a tunnel which was dug into the rocks
Karlsruhe Palace (German: Karlsruher Schloss) was erected in 1715 by Margrave Charles III William of Baden-Durlach, after a dispute with the citizens of his previous capital, Durlach. The city of Karlsruhe has since grown around it.
In Belfast, Northern Ireland, the six-floor Titanic Belfast building tells the story of the Titanic from the ship's construction in Belfast to her sinking in the Atlantic on her maiden voyage one hundred years ago.