A dilapidated dock tells the story of Titanic's missed arrival.

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

Famously misunderstood wonder of the ancient world

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Red frames showcase remnants of one of New York's original subway stations.

Pompeii's less famous neighbor is still revealing her secrets.

The ancient latrines of the Greeks, in all their public glory.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A two thousand year old brothel uncovered in Northern Greece.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The hallucinogenic center of the ancient world.

Ancient serpentine sacrifice holder that has stood the test of time.

Ozymandias’ time-keeping temple.

The Avenue of Mausolea is a series of grand palatial tombs.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This famous city eluded concrete detection until the early 2000's.

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

One of the largest Roman settlements in Portugal.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

2300-year-old Roman road connecting the empire.