American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. Wearing a harness attached to the line, Larsen walked across a 35 meter span and then a 20 meter line inside the courtyard of the ancient museum of Jerusalem's Tower of David, named after the Biblical king. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





Heather Larsen from Golden, Colorado, USA performs a split while walking the slackfline or highline across two towers in the Tower of David citadel complex overlooking the Old City of Jerusalem 02 May 2016. Larsen is one of the world's top female highliners, or slack liners and walked the lines as part of a Kickstarter campaign for an outdoor product. The tower at left was built by King King Herod some 2000 years ago. (Photo by Jim Hollander/EPA)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)





American slackliner Heather Larsen crosses a high wire between two towers at the Tower of David Museum in Jerusalem's Old City May 2, 2016. (Photo by Nir Elias/Reuters)