The region's tallest building topped out on Friday, and we strapped on boots and a hard hat and headed up to its 25th floor for an update. (Walking up 25 flights of stairs makes you appreciate DC's building height restriction a lot more.)

At Monday Properties' 1812 N Moore in Rosslyn, we snapped Monday development chief Tim Helmig thanking over 250 construction workers who helped shape the 35-story property. (They should be saluted for not being afraid of heights. We're getting dizzy just thinking about it.) Tim says Monday aims to have a certificate of occupancy by Sept. 8. The CO will be coupled with LEED Platinum certification, the firm says. Clark's Richard Wagner, who's helping oversee construction, says work on the pyramid at the top of the building will begin next month, once the concrete is poured and curtain walls are assembled on the top floors.

We snapped 1812 N Moore's leasing team, Malcolm Schweiker, Steve Hoffeditz, and Ed Clark of CBRE, with Monday CEO Anthony Westreich (along with a man looking wistfully out the window like the end of a movie). Ed tells us there's "a lot of excitement and activity" on the leasing front for the 580k SF property, and that they've seen interest from firms both in DC and Virginia, including some white shoe and consulting shops.

Here's a view of the Key Bridge and Georgetown from the 25th floor. (Can you see your house from here?) Monday prez Brian Robin tells us an announcement on a restaurant for 1812 N Moore's ground floor could be coming soon, which he says will be "the best restaurant in Rosslyn."

At the ceremony, Tim praised Arlington County's efforts as "trailblazers on the land planning front" in approving 1812 N Moore, which will stand 100 feet higher than Monday's nearby Twin Towers.