Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This little sun pays homage to a massive gate that once stood at this location.

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.

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

A haven for book enthusiasts across the street from Retiro Park.

These distorting, funhouse mirrors achieved fame in a renowned piece of Spanish theater.

Meant to resemble a massive tree, the building is the best example of Spanish organicist architecture in Madrid.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

Commonly acknowledged as the only public monument to the Devil himself.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Drink wine handed out through a window as part of an age-old tradition.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

A series of carved figures that scandalized British society.