Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

At a museum of everyday objects, it is the act of collecting that is really on display.

Diego Rivera's massive tiled fountain and failed infrastructure project.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

A neo-Gothic castle in the Argentinian countryside.

The clients of these mysterious hand-crafted funeral cars took their last ride in style.

This Argentinian hedge maze is an intricate tribute to a famous surrealist author.

One man's quest to collect artifacts from every aspect of human life has resulted in this eclectic Argentinian museum.

This giant power line tower is a robot that can express its moods in neon.

Mineral springs believed to hold therapeutic properties draw in visitors from all over.

A toxic lake near a volcanic caldera that is home to flamingos and other life.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

A pocket of Buenos Aires with an unusually high concentration of psychotherapists.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

The California secessionist movement has its own foreign embassy, in Russia of all places.

A gateway to a mysterious network of underground tunnels.

A painfully obvious spy house sits right across the street from the Russian Embassy.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

Visit this odd display of indigenous style in Argentine wine country.

Mysterious and ancient carved standing stones.