City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

Every year, the colorful murals of Montreal get a complete makeover.

Within the church are the relics of the martyrs St. Jean de Brébeuf, St. Gabriel Lalemant, and St. Charles Garnier.

These subterranean models show Mexico City's central square during three different eras.

This hotel is an amazing example of the Escuela Tapatía de Arquitectura movement.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

Diego Rivera hid various people and symbols in his first large-scale mural project.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Part bookstore, part café, and part forest.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This is the oldest Roman-made bridge in the city still existing in its original state.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

100 year tradition of fist fights, marked by marble footsteps.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.