Математический туризм. Часть 1

NYC: Fire Escape Stairs In SoH, Red stairs alongside a white building | S и т.д. Ornament's photo. Sunburst Quilt. Probably Rebecca Scattergood Savery, Philadelphia, 1835–1845. American Folk Art Museum. Dalai Lama's photo. A view of the complete Kalachakra Sand Mandala constructed for the 33rd Kalachakra Empowerment in Leh, Ladakh, J&K, India on July 8, 2014. BBC - A History of the World - Object : The ladder. Ladder - Wikipedia. 18 фотографий, которые мы никогда не видели прежде (http://www.adme.ru/tvorchestvo-fotografy/18-fotografij-kotorye-my-nikogda-ne-videli-prezhde-968460/?image=17860210&utm_campaign=art-images-share#image17874460).
Мир неожиданнее, чем мы думаем.
Лестницы и «Собиратели мёда»:
Spanish rock art depicting honey gathering during the ... Honey Hunting Festival Nov 2012, Lamjung, Nepal - YouTube. honey hunting in laprak village - YouTube. Honey hunting in the Himalayas - 18 November 1994. The ancient art of honey hunting in Nepal - in pictures ...

(https://eric-valli.squarespace.com/). Mad Honey - Edible Geography.
См. также Giant Honey Bees at Pasir Ris Park | Fr. Fearless Nepalese honey hunters scale 250ft cliffs in pursuit ... (http://www.eyeopening.info/2014/03/15/fearless-nepalese-honey-hunters).
Architecture & Engineering added 5 new photos – with Muhd Fakhrul Haziq and Mehmet Karadeniz. Nice collection of Spiral Stairs.
17 Of The Most Beautiful Steps Around The World. BOREDPANDA.COM
24_doc's photo. Шедевр дня. Лестница в Замке Ларошфуко (Шаранта, Франция).
Лестницы и риски. 25 Everyday Objects That Injure Or Kill People Every Single (8. Those innocent looking stairs you take every day are linked to the deaths of 12,000 people ever year).
Школьный проект. История лестниц Васильевского острова.

(Alcoa Building),
San Francisco.

http://mathtourist.blogspot.com/search/label/Moebius%20Strips

Fort.

Golden Circles