Astonishing rock formations dot the Brimham Moor landscape.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Copenhagen's celebrated theme park and gardens.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A semi-scholarly approach to sex.

The former hotel where Tesla invented the radio.

This Scandinavian island is the site of the first modern observatory.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

Quirky Welsh observatory unites art and science.