alex alexanderplatz architecture berlin capital cityscape german germany historic mixture modern skyscapers skyscraper television tower antenna blue city dynamic Fernsehturm high landmark sightseeing sky skyline television tower tourismn street scenery art building cloud composite material engineering finial observation tower tourism travel view 13th Century ancient atmospheric brick bricks calm church cozy decoration decorative door entrance hinge historical idyllic keyhole Marienkirche old ornamental ornamented ornaments peaceful quiet rest restful rural rustic rustical St. Mary's Church stone welcome window windows wooden