This massive monument towers over the city as a constant reminder of the lives lost during Algeria's hard-won war for independence.

This former cathedral is now a bustling library packed with students and pigeons.

This dizzying span over the ancient Algerian city was once the highest suspension bridge in the world.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

A poignant memorial that traces two hundred years of German history.

Hilltop monument to the victory of a new nation in the Franco-Prussian War.

St. Peter’s, in Western Germany, has stood as a masterpiece of Romanesque architecture since 1181.

Check the time in 145 countries at once with this East German relic.

This feat of German engineering is one of the only elevators in the world following a curved path.

World's only telecommunication tower with a wooden pinnacle.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

Volkswagen's dedicated museum dives into the complex history of one of the world's best known cars.

This gateway to subterranean Hanover plays jazz, pop and rock to surprised passersby.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

The largest mosque in Germany.

Largest illuminated advertisement sign in the world.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

Fantastic views and thousands of love locks.