The largest underground church in Europe.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Housing the groundbreaking maps and globes of Gerard Mercator.

Climb inside an iron crystal magnified 165 billion times its normal size.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

This basement museum explores the art and artistry of fascism.

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

King Ludwig I's collection of beautiful women.

The prototype for all Nazi concentration camps.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

A typical crusty old museum this isn't.

A meteorite-bounded town in Bavaria.

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

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

Two gravestones clasp hands over the religious divide.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

This historic stone bridge has an entire neighborhood clinging to its sides.

It is against the law to obstruct the view from the top of this English burial mound.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.