The broadcast tower at Alexanderplatz looms over the city center. A crossing point of tourists, commuters, shoppers, lovers, artists and bums, Alexanderplatz was rebuilt by the communist authorities of former East Germany in the 1960s. Today, it's a popular gathering place in the reunified city. Sean Gallup/Getty Images hide caption

itoggle caption Sean Gallup/Getty Images

The Wilshire Boulevard Temple (pictured above circa 1939) was dedicated 85 years ago in 1929. Rabbi Steve Leder says, "This was the Los Angeles Jewish community's statement to itself — and to the majoritarian culture that surrounded it — that 'We are here, and we are prepared to be a great cultural and religious and civic force in our community.' " Courtesy Los Angeles Public Library hide caption

itoggle caption Courtesy Los Angeles Public Library

Interns who host tours on Capitol Hill, stopping at sites like the small Senate rotunda, don't always have their facts straight. The Architect of the Capitol hide caption

itoggle caption The Architect of the Capitol

At the center of Yangon, the city's colonial heritage, Buddhist faith and emerging modern face are visible in a single block. Frank Langfitt/NPR hide caption

itoggle caption Frank Langfitt/NPR

Couples stand on the Pont des Arts, Paris' iconic footbridge over the Seine river, where thousands upon thousands of padlocks bearing love messages are attached to the railing, on Aug. 30, 2013. Patrick Kovarik/AFP/Getty Images hide caption

itoggle caption Patrick Kovarik/AFP/Getty Images

A series of postholes sit on a site that some call a major archeological find, once home to a Tequesta village. A developer wants to build on the site, but agreed to preserve the village. Greg Allen/NPR hide caption

itoggle caption Greg Allen/NPR

Where's the moon rock? Curators say national treasures are often overlooked in the museum's current display, which hasn't changed much since 1976. National Air and Space Museum, Smithsonian Institution hide caption

itoggle caption National Air and Space Museum, Smithsonian Institution

Cardboard Church, Christchurch, New Zealand. Stephen Goodenough Photographer/Shigeru Ban Architects hide caption

itoggle caption Stephen Goodenough Photographer/Shigeru Ban Architects

This illustration, provided by artist Jonas Dahlberg, shows his vision for a "memory wound" near the Norwegian island where dozens of people died during an attack by a right-wing extremist in 2011. Jonas Dahlbert Studio/EPA/Landov hide caption

itoggle caption Jonas Dahlbert Studio/EPA/Landov

View of central crossing of the central hub island, one of dozens of man-made islands envisioned by Rice University architecture students. The islands would serve as a floating city for oil workers off the coast of Brazil. Rice School of Architecture hide caption

itoggle caption Rice School of Architecture