Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This general store has stood in the same spot for well over a century.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A museum and shop on Bourbon Street located in the French Quarter.

Roman ruins top white travertine terraces formed by ancient hot springs.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Spain's largest bullring offers a unique glimpse at architecture and history.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

A 16th-century Andalusian palace.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

Gargoyle head that brings good luck.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.

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