Lonely Planet review
Designed by Helmut Jahn, the Sony Center is visually the most dramatic of the three Potsdamer Platz sections, fronted by a 26-floor, glass-and-steel tower that’s the highest building on Potsdamer Platz. It integrates remnants of the prewar Hotel Esplanade, including a section of facade (visible from Bellevuestrasse) and the opulent Kaisersaal hall, which had to be moved 75m to its current location using some wizardly technology. The heart of the Sony Center, though, is a central plaza dramatically canopied by a tentlike glass roof with supporting beams emanating like spokes of a bicycle. After dark it erupts in a light show of changing colours. The plaza and its many cafes are great for hanging out and people-watching. Also integrated into the ensemble is the historic Kaisersaal , which is a rare relic from the prewar Potsdamer Platz days.