A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Guns that have been defending San Francisco since 1904.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

Golden Gate Park's historic collection of plants.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Special benches that play Chopin's music are scattered throughout his native city.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

One of the world's heaviest musical instruments towers within a popular urban park.

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

A restaurant and observation deck built in a unique broadcasting antenna.

Floating swimming pool within a moored vessel.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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.

The most visited, and possibly most controversial, museum in Germany.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

A massive Montreal stadium that has seen nothing but trouble since its inception.

Montreal's colorful subway station shows its support of the local LGBT+ community.

Two thirds of this Montreal neon icon has survived to flash another day.