Natural basalt pyramid.

This is Búlandstindur (1069m / 3500ft) between Berufjörður and Hamarsfjörður in eastern #Iceland.

Basaltic strata like these have odd properties, they form hexagonal columns of an almost architectural neatness which are very strong vertically but layered horizontally so that slices flake off the tops. As the columns weather, structures such as this can form, resembling an Egyptian pyramid.

#TuesdayTowers #photography

Okay here is my roundup of Tuesday Hashtags
#FairyTaleTuesday
#TuesdayTombs
#TuesdayTowers
#TongueOutTuesday #TuesdayTrees
#Tuesday
#Tombsday
#ThickTrunkTuesday
#TreeTrunkTuesday
Feel free to respond with other good ones I have missed.
@catmcintyre @lowdudgeon @steveolson One of those towers, owned by the powerful Guelf Cerchi clan, became the chosen retreat of the Blessed Umiliana de'Cerchi who, against her family's wishes, lived her short life (1219-1246) as an extreme religious ascetic and Franciscan tertiary. Upon her death she became a figure of devotion for many Florentines. #TuesdayTowers #Florence #Medieval
@catmcintyre @lowdudgeon @steveolson #TuesdayTowers A guide to the vanished towers of #Medieval Florence, symbols of aristocratic factionalism ordered destroyed by the republican commune.
https://www.arttrav.com/florence/medieval-towers-of-florence/
How to Spot the Hidden Medieval Towers in Florence

Every year, many tourists visit the beautiful Tuscan town of San Gimignano. They come to see the famous medieval towers […]

ArtTrav
Ville d'Art et d'Histoire

La Ville d’Uzès obtient le label « Ville d’Art et d’Histoire » en novembre 2008. Une convention signée entre le ministère de la Culture et de la Communication et la Ville d’Uzès officialise ce partenariat fort qui souligne la volonté de la ville de promouvoir la qualité architecturale et paysagère…

Ville d'Uzès : Site Internet
@catmcintyre @lowdudgeon @steveolson Trying to make #TuesdayTowers A Thing. Here's the Torre d'Elefante in Cagliari, Sardinia, built in 1307 by the Pisans, who were contending with other Mediteranean powers for control of the island (formerly a collection of independent states). (Source: Wikimedia)