This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This winding road through an Italian canyon may be the most scenic drive in the world.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Five candy-colored villages on the Italian Riviera.

Abandoned medieval hill town.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The glowing blue Nymphaeum of Emperor Tiberius.

Geothermal waterfalls in Tuscany.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

France's high-tech, future-themed amusement park.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

This ancient theater was once the home of fierce gladiatorial battles.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.