These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Cold war icon and onetime "hole" in the iron curtain.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

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

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

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

This small museum in a 17th-century building honors three iconic Scottish writers.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

The final resting place of soldiers' loyal canine companions.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Home to the oldest operating roller coaster in the Southern Hemisphere.

One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

This 2008 memorial commemorates two leading Aboriginal Australian rights activists.

A firefighting museum housed in a historic station whose Lookout Tower watches over Melbourne.

Somewhat controversial when first unveiled, this gathering of sea creatures has become a hidden gem.

A historic model village was gifted from residents of London to Melbourne as thanks for their help during World War II.

A whimsical menagerie of creatures carved into a 300-year-old tree trunk.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

A striking bronze sculpture of a Roman goddess with two hound dogs for company.

The word 'wunderkammer' translates as 'wonder-chamber'. This Wunderkammer is both a museum and a retail store.