Apartment complexes built into huge repurposed natural gas tanks.

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

A non-stop elevator ride in Vienna's city hall.

The Habsburgs' royal collections of art and wonders.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

Handsomely crafted representations of our round planet.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

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

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

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

This museum is dedicated to the little known ancient Roman history of Vienna.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Legendary prop shop filled with one man's collection of scientific curiosities.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Megachurch turned Catholic church comprised of 10,000 glass panes.

Museum dedicated to the preservation of surf culture.

A surreal, Gaudi-inspired play space near an Anaheim community center.

Abandoned bridge hidden deep in the San Gabriel Mountains.

Abandoned Air Force base that has fallen into disrepair.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

Where decommissioned airplanes and helicopters go to become part of Hollywood.