A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

This tower once served as a radar station during the Cold War.

A glacial valley filled with silver beech trees in the mountains of Portugal.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

A German apartment building hosting as many trees as human occupants.

Fantastic views and thousands of love locks.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.