Traditional Samoan Fale Houses Have No Walls

The Hawaiian language uses just 13 characters: 5 vowels (a, e, i, o, u), 7 consonants (h, k, l, m, n, p, w), and the glottal stop ʻokina. This makes it one of the languages with the fewest phonemes in the world. Despite its simplicity, Hawaiian produces complex, flowing words.

Finland has a population of about 5.5 million people but an estimated 3.3 million saunas — roughly one sauna for every 1.7 people. This outnumbers the country's registered cars. Saunas are deeply embedded in Finnish culture; there are even saunas in the Finnish parliament building.

The unicorn has been part of Scottish heraldry since the 12th century. In Celtic mythology, the unicorn symbolized purity, power, and independence. It also appears on the Royal Coat of Arms of the United Kingdom, chained — because legend held that a free unicorn was dangerous.

Steel expands when heated. During hot summer days, the iron lattice of the Eiffel Tower can expand enough to grow approximately 15 cm in height. In winter, the cold causes the metal to contract and the tower shrinks back down.