The Going Out Guide recommends free or low-cost things to do this week. (Events are free unless otherwise noted.)

MONDAY

Held in conjunction with the National Building Museum exhibition “Designing for Disaster,” this discussion, featuring NPR's Cities Project editor Franklyn Cater, focuses on the impact of natural disasters and how cities can manage their environments when faced with climate change.

12:30 to 1:30 p.m National Building Museum, 401 F St. NW. 202-272-2448. www.nbm.org. Registration required.

TUESDAY

Traveling all the way from New Orleans, the sketch comedy groups Stupid Time Machine and rude bring their antics to Washington for the Washington Improv Theater’s Harold Night at the Source. The groups also will perform at the Crown in Baltimore on Wednesday ($7).

9 p.m. Washington Improv Theater, 1835 14th St. NW. 202-204-7770. www.washingtonimprovtheater.com.

THURSDAY

With Halloween only two weeks away, it's getting to be about time to carve your pumpkin. This week, NOMA BID is inviting guests to carve a free pumpkin, visit a petting zoo and hear a bluegrass band. Be sure to reserve a pumpkin online (the first 300 people will be provided with pumpkins and carving tools).

4 to 7 p.m. First and Pierce streets NE (1100 First St.). www.nomabid.org/pumpkin-carving.

FRIDAY

Hear two local acts, Furniteur and Laughing Man, perform as part of the American Art Museum’s Luce Local Artist series. Washington brewery Atlas Brew Works will be offering samples to visitors age 21 and older. The event is co-sponsored by Washington City Paper.

6 to 8 p.m. Smithsonian American Art Museum, Eighth and F streets NW. 202-633-1000. americanart.si.edu.

ALSO ON FRIDAY

The Hill Center Hill Flicks series will screen "Women in Comedy," about the history of women in the comedy industry and featuring such comedians as Jane Lynch, Ellen DeGeneres, Monique and Sarah Silverman talking about breaking into a male-dominated field.

7:30 to 9:30 p.m. Hill Center at Old Naval Hospital, 921 Pennsylvania Ave. SE. 202-549-4172. www.hillcenterdc.org.

SATURDAY

Whether you’re a gourmand or just enjoy good flavors, you'll find something to your taste at this National Geographic food festival. Activities include demonstrations by local chefs; a produce scavenger hunt; a smoothie-bike; fruit and vegetable watercolor painting; and more. The event is held in conjunction with the recently opened exhibition “Food: Our Global Kitchen,” on view through Feb. 22.

10 a.m. to 3 p.m. National Geographic Museum, 1145 17th St. NW. 202-857-7588. www.nationalgeographic.com/museum.

SUNDAY

The D.C. Arts Center has described this afternoon of spoken word, featuring local poet Julia Jordan, as a mash-up of Upright Citizens Brigade and Def Poetry Jam.

3 p.m. D.C. Arts Center, 2438 18th St. NW. 202-462-7833. www.dcartscenter.org. $10, reserve tickets.