Tickets to a preview open house at One World Observatory will be available on Thursday, May 14 at 10:30 a.m.

The open house will be held on Thursday, May 28--one day before the observatory, which is on floors 100-102 of One World Trade Center, opens to the public.

Complimentary tickets are available at http://owo.nyc/openhouse only.

The open house will include trips to some of the exhibits, including a video board of salutations in a number of languages, the personal stories of the men and women who built One World Trade Center and

Starting on May 29, the Observatory will be open year-round. From May 29 until Sept. 7 the Observatory will be open from 9 a.m. until midnight seven days a week, and then will resume non-summer hours until 8 p.m.