This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

Medical history with an amazing, if frighting, collection of wax diseases on display.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

A beer pipeline runs beneath Bruges.

A taxus-tree to which Julius Caesar reputedly tied his horse.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

A rare example of World War I trenches from the British front.

A Cold War command center is hidden under an idyllic countryside.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

This abandoned Belgian fortress is purposefully being left to nature.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

Descend into the tunnels to experience the life of a coal miner.

Hiding the longest subterranean river known in the world.

This small window display is dedicated to the noble carrot.

The highest point in Belgium is a staircase to nowhere.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

This German monument honors the so-called "Prince of Mathematicians."

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."