What is the capital of Mongolia?

In one episode of the Amazing Race reality show, the contestants were challenged to construct that circular Mongolian house. A simple but strong building.

I believe that structure is a yurt, made of a covering of reindeer fur felted.

I've not been to ulannnbadtar

this place is on my bucket list.

Who on earth chose Genghis Khan??? 😂😂😂 Siberia is region of Russia, I thought 2nd most voted option was Tuva and also Tuva is a "republic" in Southern Siberia near Mongolia. Genghis Khan is a funny answer. He/She is setting hilarious answers to help us get this question correct and unfortunately, people are amateurs in Geography