Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A striking symbol of the Bulgarian capital.

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

These ruins of a Phoenician sanctuary in Sicily have a dark history.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

Pilgrimage site for star-crossed lovers.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

In Lago Superiore, the largest expanse of lotus flowers outside of Asia is hard to miss.

An architectural oddity where the triglyphs of the courtyard of walls create an optical illusion.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

Massive galleon from a box-office bomb docked in Genoa.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.