Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A reproduction of earth's many biomes.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Dramatic river bend surrounds a natural red-rocked pedestal.

This sculpture perfectly models the molecular structure of a drug that was never produced.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The first outlet of Canada's biggest fast-food franchise has been slinging doughnuts since 1964.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

A brutalist gem towering over the heart of Milan.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Go inside to really appreciate this 500-year-old technological masterpiece.

This street has over a half-dozen names, all at once.

A peculiarly shaped brass sculpture hidden in a courtyard in central Lviv

Padlocks cover this rickety footbridge with love.

This replica of the Greek structure is in the heart of Nashville.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

The grandiose interior of this bar speaks to its past as home to famous jewelers and railway offices.