When this 18th-century observatory's meridian was moved, it set Sweden's time back by 0.04 seconds.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Oriental bazaar in the heart of Sarajevo.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Monasteries on rock pillars, once accessible only by frayed ropes.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The first green space constructed on an elevated viaduct.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

One of the world's tallest statues is also one of its most hated.

A vast Communist-era exhibition space in the Bulgarian capital.

Sofia's legislative center is continuously reinventing itself.

"Holy Wisdom" overlooks the city that became its namesake.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A war-torn Olympic relic is being overtaken by graffiti and nature.