The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

"Unity, Creativity, Beauty."

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

A striking symbol of the Bulgarian capital.

The Pope’s secret escape route.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

What happens here stays here – unless it affects the whole world.

A bit of retro transportation flair preserved in the world's largest department store.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A hidden "place of interment for gentlemen."

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

This was once the center of the Birdman cult, and is now a World Heritage Site.

The largest stone moai on Rapa Nui.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.