Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Five candy-colored villages on the Italian Riviera.

A hidden three-foot-wide house separates these two regal churches.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

One of the only memorials dedicated to journalists who died in combat.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

A winding district gerrymandered into the shape of a mantis.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

Once America's tallest structure, now a Baltimore landmark.

2300-year-old Roman road connecting the empire.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.