The house that took a plunge into the facade of a museum.

The first modernist church in Europe.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

A breathtaking viewing platform over the Alps.

A magnificent collection of imperial armor and weaponry.

The solemn exterior conceals an opulent interior of this 17th century church.

An exquisite Baroque church in Vienna's old town.

An Austrian house of bones filled with hundreds of intricately painted skulls.

The topiary maze at the Habsburg hunting lodge.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

Dedicated to the American general whose reply to a German demand for surrender was simply "Nuts!"

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Colorful and chaotic stacked hotel in North Holland.

A beautiful maze marks where three countries meet.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

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.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

This tower once served as a radar station during the Cold War.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."