This small train ride offers stellar views of the Grand Garden Palace.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

This 1960's Soviet submarine in Peenemünde Harbor claims to be the largest submarine museum in the world.

These crumbling monastery ruins inspired a master of German Romanticism.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

A natural wonder in south Denmark.

Construction of this bridge was once described as an "act of violence" against a neighboring country.

This pedestrian bridge in Croatia is a sleek, ship-inspired design with a fun net and social spaces.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

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

A larger-than-life monument to the inventor of the Bunsen burner.

In this German city center, the streets have no names.

This 18th-century folly is one of Europe's rare "garden mosques."

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

The tallest mountain in mainland Netherlands isn't actually very tall.

A beautiful maze marks where three countries meet.

Twisted buildings adorn the banks of the Rhine river.

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

A ruined castle stands atop a hill surrounded by dragon lore.

World's only telecommunication tower with a wooden pinnacle.