The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

Decades before the scandal, this staircase on the river was a literal "water gate."

A small but immensely extravagant palace built by the "Night King."

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

A serious museum dedicated to two German comedians.

An abandoned train station in Munich constructed for the 1972 Olympic games.

A small square plaque marks a failed assassination attempt that could have changed history.

Go surfing on this urban wave, "hacked" by local surfers.

The footprint of a frustrated devil in Munich's Cathedral.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This super steep hike ascends 2,000 feet in less than a mile.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

Only hotel where you can legally launder money.

Iceland's tribute to its thankless civil servants.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

This stunning concert hall has become a symbol of Iceland's national recovery.

Three columns of volcanic rock shoot out of the ocean.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

An encyclopedic collection of mammal penises.