A set of outdoor stairs named in honor of a famous Austrian artist.

An ornate private entrance to the Vienna subway built specifically for the emperor.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

A cluttered and astounding collection of antiquities and curiosities.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Small Easter eggs are hidden in the ventilation holes of the city's newest trains.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.