High-rise buildings, BahnTower and Kollhoff-Tower from a worm's-eye view, Potsdamer Platz, Berlin, Germany, Europe

and angle architecture bahntower below berlin building buildings day daylight daytime during europe european exterior exteriors eye facade facades federal frg from front fronts german germany high high high rise high rise high riser high risers high rises highrise highrises house houses kollhoff kollhoff tower low low angle modern multi multi story multistoried multistory nobody of outdoor photo photos platz potsdamer republic rise riser risers rises shot shots story the tower tower towers upward view views worms worms eye front external wall walls cladding windows opening openings veneer arrangement city urban frog perspective worm's eye worm¥s worm`s upwards two together pair blue sky loom looming rise up emerge emerging aspire aspiring pile up towers high height forms regular surface solid pattern architectural functional reflection office reflecting reflect glass adverse counterpart opponent opposite compared with to vis a vis face to face opposing opposed skyscraper skyscrapers high rise high rise tower block multi storey multistorey multistory symbol symbolism advancement boom booming vanguard real estate management progress ambitious upcoming regular progressive