67: US-1872917

USA

66: FI-1543116

The oldest Finnish town, Turku, which is about 800 years old.

Turku - Finland

65: DE-1586439

The image illustrates a German idiom, "Halt den schnabel" which means "Keep your mouth shut".

Germany 

64: Private

Sent by my friend. On the banks of the Douro river, one of the major rivers in the Iberian Peninsula

Porto - Portugal

63: JP-315085

Japan

62: Private

This frog on a skull is part of the main façade at the university of Salamanca. According to my friend, tradition dictates if you can spot it, you will enjoy academic success. 

Salamanca - Spain

61: Private

Saxonian Switzerland, a hilly climbing area and national park around the Elbe valley south-east of Dresden. Sent by a friend.

Saxony - Germany