Go surfing on this urban wave, "hacked" by local surfers.

The unusually large seat sits atop the base of a ruined temple.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

An unofficial monument to the late King of Pop sits at the base of a Renaissance composer's statue

The footprint of a frustrated devil in Munich's Cathedral.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

A larger-than-life monument to the inventor of the Bunsen burner.

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

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

The narrowest street in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This modest marker near Notre Dame identifies the very center of Paris.

This demon atop the Notre-Dame de Paris looks utterly bored.

This 400-year-old tree is actually an immigrant from North America.

A surrealist timepiece by the artist of melting clocks.

Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.