The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

The stones of this formerly witch-obsessed castle were used to build a church.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

This winding road through an Italian canyon may be the most scenic drive in the world.

This 47-story "M" needed 20 years to be completed

The location of the last witch trials of Italy, known as "The Salem of Europe."

Massive galleon from a box-office bomb docked in Genoa.

Pilgrimage site for star-crossed lovers.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

Macabre astrological automaton clock dating to the late 1400s.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Countless stories attempt to explain Poland's mysterious J-shaped trees.