A statue based on a tragic Japanese nursery rhyme, commemorating San Diego's sisterhood with Yokohama.

In September 1974, a small group of athletes completed the first modern triathlon event in San Diego's Mission Bay.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A mosaic map made of over 100,000 tiles depicts the geological features and sea creatures that live along this San Diego beachside community.

A futuristic-looking beach house built for the owner of a snack food brand.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

Taste freshly foraged yarrow and black locust blossoms at this ambitious cocktail bar.

A Syrian family keeps memories of their homeland alive at this sweet shop.

Puppet theater and museum holding a collection of more than 300.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

Metro station with a claim to rock n' roll fame.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Largely overlooked, this little fountain on Museum Island is a whimsical tribute to a Prussian king nicknamed the “Fatty Flounder.”

A fascinating insight into daily life in the Eastern Bloc.

One of downtown Berlin's last reminders of its Communist past.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

A brush maker used his factory to protect blind Jews from the Gestapo.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.