The oldest church in Iceland is one of the few to feature ornate decoration.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This elegant arc of a waterfall marks a religious turning point.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

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

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

Charnel house at the foot of Mount Sinai.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A room in New York City that contains 250 cubic yards of dirt.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

One kilometer of thick brass rod laid out before your eyes.

The former sign of this immortal music venue is just that--undying.

New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Avoid gangster interaction while window-shopping.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

A hidden "place of interment for gentlemen."

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A semi-scholarly approach to sex.