Order a boozy baba au rhum at the oldest patisserie in Paris.

A French artist's vague warning hangs over Belleville.

This Algerian sweet shop serves confections in an eye-popping array of hues.

This magnificent church allows travelers along one of Germany's busiest roadways a chance to rest and reflect.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The last bastion of Roman presence north of the Alps looms over a German town.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

It's said the devil used this mushroom rock as a table for a late-night meal.

World's largest barrel containing an inn.

In this German city center, the streets have no names.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

It's good luck to be mocked by this monkey.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

The culprit who accidentally lit this 3,500-year-old tree on fire stated "I can't believe I burned down a tree older than Jesus."

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

If you don't look closely, you might mistake this sculpture for just another passenger waiting at the airport.

After years of being casually peed on by humans, this tree is peeing back.

The many—66 to be exact—faces of the German forest.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.