2021 marks the 20th anniversary of the 9/11 attacks. Several communities and organizations in the Greater Houston area are holding commemorative events to honor the victims of the attacks and to commemorate first responders.

Sept. 11-12: Lone Star Flight Museum hosts commemorative exhibit, free admission for first responders

The Lone Star Flight Museum will feature 9/11 programming Sept. 11-12, including an exhibit featuring a World Trade Center i-Beam and a presentation by Houstonian survivor Billy Forney III. 10 a.m.-5 p.m. Free (first responders and children under age 3), $4 (ages 4-11), $13 (ages 12-17 and over 65), $15 (adults)
11551 Aerospace Ave., Houston. 346-708-2517.

Sept. 11: League City Volunteer Fire Department hosts Memorial Stair Climb at Challenger Stadium

The League City Volunteer Fire Department is hosting its annual Memorial Stair Climb at Clear Creek ISD’s Challenger Stadium. Firefighters in full gear and anyone who wishes to participate will climb 110 flights of stairs, the same amount in the World Trade Center buildings. 8 a.m.-noon. Free to attend or participate. Clear Creek ISD Challenger Stadium, 1955 W. Nasa Blvd., Webster. www.facebook.com/LeagueCityFire

Sept. 11: The Woodlands Township hosts joint Patriot Day of Remembrance, First Responders Day events

The Woodlands Township will be hosting two commemorative events Sept. 11. The Patriot Day of Remembrance event will take place at The Woodlands Fire Department Central Station and will feature a ceremony honoring all victims of the 9/11 attacks. First Responders Day will begin in the afternoon and will feature a community gathering including an honor guard and presentation of colors for first responders.
7:30 a.m.-8:30 a.m. (Patriot Day), 3-6 p.m. (First Responders Day). 9951 Grogan's Mill Road (Patriot Day), 2099 Lake Robbins Drive (First Responders Day). 281-210-3800.

Sept. 11: Cy-Fair Fire Department to hold 20th anniversary commemoration at Station 11

The Cy-Fair Fire Department will hold a 9/11 commemoration at the department’s Station 11. Chief Amy Ramon will make remarks, followed by a moment of silence and a radio dispatch in honor of first responders. Light refreshments and coffee will be available. 7:30 a.m.-8:15 a.m. Free. 18132 West Road, Cypress. 8:30 a.m-1 p.m. 281-550-6663. www.cyfairfd.org

Sept. 11: Montgomery County Veterans Commission to host event at Memorial Park in Conroe

The Montgomery County Veterans Memorial Commission, the Montgomery County Fire Chief Association and Texans United for Freedom will commemorate the 20th anniversary of the Sept. 11 attacks at the World Trade Center. 8-9:10 a.m. Free. 1 Freedom Blvd., Conroe. www.mcvetmemorialpark.org

Sept. 11: First responder procession, memorial service in Tomball

The city of Tomball and Tomball Rotary Club will hold a ceremony Sept. 11 in downtown Tomball to commemorate the 20th anniversary of 9/11. The ceremony will feature a first responders procession and color guards from the Tomball Fire and Police departments. 8:30 a.m.-1 p.m. Free. 201 S. Elm St., Tomball. www.tomballtx.gov

Sept. 11-12: Kingwood Chorale and Resound! present remembrance concerts

The Kingwood Chorale will partner with Resound! and the St. Anne Choir for a special 20th anniversary commemoration performance of Mozart’s "Requiem in D Minor." The concerts will be held at St. Anne Catholic Church in Houston and at the First Presbyterian Church of Kingwood. Maestro Tom Jaber of Rice University will conduct the performances. The St. Anne concert will be held Sept. 11 at 4 p.m., and the First Presbyterian concert will be held Sept. 12 at 4 p.m. Free (donations encouraged). St. Anne Catholic Church, 2140 Westheimer Road, Houston; First Presbyterian Church, 5520 Kingwood Drive, Kingwood. www.lhmas.org/

Sept. 11: Multi-Faith Neighbors Network Houston partners gathering resources for Afghan refugees

Houston-area partners of the Multi-Faith Neighbors Network will be collecting resources Sept. 11 for Afghan refugees as part of the MFNN 9/11 Day of Service. The organizations collecting donations are the Houston Congregation for Reform Judaism, Houston Northwest Church and Tajweed Institute. The MFNN said in a press release that the collection will help symbolize unity. Donations will be collected at the Tajweed Institute at 16205 Westheimer Road, Houston. Information on supplies needed can be found at www.mfnnetwork.com/day-of-service.

Sept. 10-18: Pearl Fincher Museum of Fine Arts to host Sept. 11 commemoration exhibit

The Pearl Fincher Museum of Fine Arts in Spring will feature "September 11, 2001: The Day That Changed the World," an educational exhibit detailing the 9/11 attacks through 14 prints. The exhibit will feature archival photographs and artifacts from the 9/11 Memorial and Museum. The exhibit will be held in the Judith Ann Smith Foyer. Museum hours are Tuesdays-Saturdays 10 a.m-5 p.m. Free (donations encouraged). 6815 Cypresswood Drive, Spring. www.pearlmfa.org/