This bronze statue was erected to honor a small Scottish town's beloved stray cat.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

This bridge was constructed from the rubble of the infamous Bastille.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

The Sun King's military models, saved from the Louvre.

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

The celebrated eyesore created by starry-eyed sweethearts.

The world's largest wooden structure.

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

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

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

A complimentary beverage is offered to the bodega's resident rodents every day.