Reminders of the Battle of Berlin still scar the railway.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

One of the world's heaviest musical instruments towers within a popular urban park.

A stunning two-story timepiece within a medieval Brick Gothic church.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Model Trains and Much More in Hamburg.

A monument to the man who almost killed Hitler.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Cold war icon and onetime "hole" in the iron curtain.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A restaurant and observation deck built in a unique broadcasting antenna.

The first modernist church in Europe.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Dine amidst exotic plants at this former royal greenhouse.

The Habsburgs' royal collections of art and wonders.

An exquisite Baroque church in Vienna's old town.

Baroque celebration of the end of the Great Plague of Vienna.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The beautiful baroque library of the Hapsburg empire.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The final resting place of 19th-century sailors previously banned from being buried within Portuguese Macau.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.