Where is it?

Time for another contest! What's at stake? Another homespun month-long Blog Ad on my sidebar...just ask Jeremy how much extra traffic he's gotten from that alluring piece of art!

Task: name the national capital that is the site of this picture. I will only accept the first two (2) guesses from any address (there being a limited number of national capitals), so choose carefully. Address your intel reports to cowboyblob--at---yahoo-dot--com.

Update: Only one person has been willing to throw out a first guess, so far. No hints forthcoming...try a map and Google.

Update: No takers, folks?

Hint: This landmark appears on the first page for the city in Google Images.

Flash: Brett Payne of Grandpa's War nailed the contest just moments after I posted the reminder. The landmark is in Windhoek, Namibia.