Tokyu Plaza Omotesando Harajuku sits at one of Tokyo's busiest intersections, but its most memorable feature is what greets you before you've bought a thing. Designed by architect Hiroshi Nakamura, the building's entrance is a kaleidoscopic tunnel of polyhedral mirrors, an optical cave that turns a shopping trip into something closer to a funhouse.

The real draw, though, is the sixth floor. Omohara Forest, a rooftop garden hidden above the crowds of Omotesando, offers stepped, polygonal seating designed to echo the base of tree roots. It hosts seasonal events including Hanami, the traditional cherry blossom viewing, in spring. Nakamura designed the building as a deliberate argument against online shopping: the idea that a physical space can offer something no screen can replicate.

VoiceMap's architecture tour uses Tokyu Plaza as the first stop on Omotesando, tracing how a series of landmark buildings by Pritzker Prize-winning architects have quietly turned a single street into one of the world's great outdoor galleries.