Man looking South in All Directions

Problem

Where can a man look south in all directions?

Variant

A man builds a square house with windows in each of the four walls.

Each window faces due south.

Where did he build his house?

Solution

When he is standing at the North pole.

$\blacksquare$

Also see

• Place where Wind always Blows from North, a variant of this.

Historical Note

This puzzle is typical of those found in collections of Victorian amusements.

Sources

• 1633: Henry van Etten: Mathematicall Recreations (translated by William Oughtred from Récréations Mathématiques)
• 1992: David Wells: Curious and Interesting Puzzles ... (previous) ... (next): Henry van Etten: $119$