The conquistador's former fortress is the oldest preserved colonial building in the Americas.

A long-buried ancient ruin unearthed right in the middle of the city.

Known as "The People's Park," this verdant oasis is home to elephants and villagers alike.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

This prehistoric figurine is the oldest known realistic depiction of a human face.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

This 16th-century house tells the city's history through old artifacts and quirky tales.

You don't have to be a diplomat to visit the so-called Camp David of the West.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A lush oasis full of vibrant plants and striking geometric displays.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

The last resting place of the famous Native American princess is marked by a haunting monument.

Fourteen sculptures showing the development of a fetus stand outside a hospital for women and children.

An American ghost town hides along a side street in Scotland's capital.

This ancient town is full of stunning Ottoman architecture and streets so narrow trash collection is done by donkey.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.