Come for the flowers, stay for the bats!

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Hear the quietest sound from across the dome.

These ornate arches show how the course of the River Thames has changed.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

Model Trains and Much More in Hamburg.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

A pair of giant stone heads represent the ancient Roman saints beheaded here.

A 1,500-year-old ghost settlement is slowly fading away.

Only a handful of these gorgeous historic waterwheels remain but even those are in danger from local unrest.

Ruins of the Crusaders' headquarters.

A fantastic castle rumored to be the birthplace of King Arthur.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The bronze uniforms commemorate the vital role of women during World War II.

An unusual round church in London with a Templar past.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."