The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Ozymandias’ time-keeping temple.

The unbelievably opulent home built for an infamous newspaperman.

An ancient iron pillar in Delhi that seems to be rustproof.

The abandoned palace stands as a wounded but proud beacon of Afghan hope.

What was once supposed to be the symbol of a shining Afghan future is now a bombed-out ruin.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.

A daybeacon pyramid is about all that's left of this island that is said to have sunk due to a pirate's curse.

Solar powered Spectacle Island features all-green facilities.

The hill that gave the Massachusett tribe, and later the state, its name.