Real estate investor Tom Liravongsa is documenting his ambitious renovation of a historic tower—floor by floor.

These structures come with a hefty price tag and are located in some of the world's wealthiest nations like the United States ...

From what started as photographic musings of the industrial and often striking landscape of the Black Country while out on a ...

Even more unexpectedly, I have been able to make tennis-ball towers consisting of layers of four balls (4 n + 1) and five balls too (5 n + 1). Their equilibria are more delicate and, in the case of ...