This mural, which made perfect sense before the metro stop changed its name, now feels out of place under the station's new name

High above one of Madrid's busiest streets, a woman nobody can identify has been watching passersby for nearly a century

Likely the most colorful in the metro network, this mosaic was installed back in 1995.

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

This medieval synagogue survived the Inquisition as a hospital and church.

The Boston square dedicated to the dark poet who was born nearby.

This Central New York ghost town was once a prosperous railroad community.

Founded in 1788, this Rhode Island institution is the oldest operating general store in America.

Three prestigious academic collections come together to create a world-class natural history museum.

An enormous, inside-out glass globe built in 1935.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

Solar powered Spectacle Island features all-green facilities.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

One of the best examples of the modernist movement in Madrid.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

Inaugurated three times, this tower offers some of the best views of Madrid.

This enormous censer uses a pulley system installed over 400 years ago.