1.   Although they disagreed on where to mark their border, the two nations promised to work it out.

2.   A jogger hurdles one nearby street bump marking the border.

3.   A few hundred yards away, a white metal barrier marks the border.

4.   A painted line marks the border between Utah and Nevada between Wendover, Utah, and West Wendover, Nevada.

5.   Except at official crossing points, the border is usually marked by small obelisks.

6.   It marks the border between post-industrial Europe and pre-industrial Africa, a chasm that presents some of the most extreme disparities in income and living standards on Earth.

7.   Locals walk past an obelisk in October marking the border between Tabatinga, Brazil, background, and Leticia, Colombia.

8.   Night searchlights went up along the fence that marks the border.

9.   Or when four-wheel-drive vehicles simply would smash through the flimsy chain link fence that once marked the border.

10.   Still, feelings between the neighbors on the Korean peninsula are about as warm as the icy hills that mark their border.