With a history dating back to Victorian times, this architectural gem is a rare New York tourist haunt worth visiting.

Wooden pavers represent a 17th-century barrier that gave Wall Street its name.

The secret behind these nostalgic light fixtures: They're not as old as they may seem.

A square-domed symbol of resilience in the heart of the old Jewish Ghetto.

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

Once a path for Jewish funeral processions, this unassuming alleyway is rich in local lore.

This watchtower once presided over the Berlin Wall.

This sprawling Jewish cemetery is one of the largest in Europe.

A towering monument to war, located on a beautifully peaceful hill.

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

Tiny memorials honor individual victims of the Holocaust.

Reminders of the Battle of Berlin still scar the railway.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

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

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

An abandoned NSA listening post on Berlin's "Devil's Mountain."

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

A thin golden line commemorates the deadliest terrorist attack in recent German history.

One of the best-preserved pieces of DDR propaganda in Berlin.

Some of the world’s most popular songs came out of this building.

A series of markers along one side of an Amsterdam canal memorialize the Jewish residents from the other side who died in the Holocaust.

The largest stretch of the Berlin Wall is right on top of the former SS headquarters