Although Halloween falls on a Monday this year, there are plenty of events around Capitol Hill this weekend to help kids and adults alike celebrate the holiday.

Wicked Walking

Try to make contact with the ghosts of politicians past by taking a guided tour through the capital’s most haunted places. Washington Walks sponsors several tours of Washington, D.C.’s haunted sites. The “Capital Hauntings” tour meets at the McPherson Square Metrorail station at 7:30 p.m. on Oct. 29, 30 and 31. Tour guides relay ghost stories associated with places such as the White House. Washington Walks also sponsors “The Most Haunted Houses” at 6:30 p.m. Wednesdays. The $15 tour, which meets at the Farragut West Metrorail station, takes visitors through the most haunted houses in the city and ends at The Octagon House, a place that Edgar Allen Poe wrote gave him “a sense of insufferable gloom.” Information: (202) 484-1565.

Kid-Friendly

Monsters and Music: Halloween isn’t always scary. Kids can celebrate the normally ghoulish holiday at “Nicolo Whimsey’s Pumpkin Party and Parade” on Oct. 28 and 29 at the Smithsonian Associates Discovery Theater. The Maryland-based duo juggles and sings and helps the kids take part in a costume parade. Children can also get their face painted and take home a mini-goodie bag. Tickets cost $10 for adults and $9 for children and Smithsonian Resident members. (202) 357-1500.

Scares in Space: Halloween isn’t just a holiday on Earth. The National Air and Space Museum sponsors “Air & Scare” from 5:30 to 9 p.m. Oct. 28. The Udvar-Hazy Center in Virginia will be transformed to fit the haunted holiday, featuring simulator rides, a haunted Mars yard, a storytelling corner and a special arts and spacecrafts area for children. Two classic episodes of the “Twilight Zone” will be shown at the museum’s IMAX theater at 7:30 p.m. Admission is free, but tickets are required. Reservations can be made online at www.nasm.si.edu/events/lectures/ticketsform.cfm. The center is located at 14390 Air & Space Museum Parkway in Chantilly, Va. (202) 633-1000.

Ghost Ship: Hit the high seas as the U.S. Navy Museum sponsors tours of a haunted version of the display ship Barry at the Washington Navy Yard starting at 6 p.m. on Oct. 29. The Cold War era vessel will be transformed into a ghost ship, featuring craft activities, treats and movies with the ship’s crew. U.S. Navy Museum docents will also lead candlelight tours of the Washington Navy Yard starting at 7:30 p.m. The event is free, but reservations are required. 805 Kidder Breese St. SE. (202) 433-6897.

Bar scene

Black Cat: Celebrate Halloween with a “Britpop costume party” at this all-ages event on Oct. 29. DJs ReddAj and William Alberque start spinning tunes at 9:30 p.m. $5. 1811 14th St. NW. (202) 667-7960.

Cantina Marina: A costume contest, drink specials and other entertainment highlight the Oct. 31 celebration at this waterfront bar. 600 Water St. SW. (202) 554-8396.

Fado: The pub holds its annual trick or treat party on Oct. 29. A DJ hits the turntable at 10 p.m. and a costume contest is scheduled for midnight. For ages 21 and over. 808 Seventh St. NW. (202) 789-0066.

La Tasca: Help celebrate the second anniversary of the Spanish bar at its Masquerade Ball on Oct. 29. While costume isn’t required, there will be $3 sangria for those who show up in costume. Complimentary paella and tapas, Latin and global beats also make the night special. 11 p.m. to close. 722 Seventh St. NW. (202) 347-9190.

Nightmare on M Street Bar Crawl: Rumors and 11 nearby bars sponsor this annual D.C. event on Oct. 29. From 5 to 10 p.m. patrons can pay a cover ($10 in advance, $15 at door with costume, $20 without) and get $2 Budweiser bottles and $3 food specials all night. The party goes on until 1 a.m. 1900 M St. NW. (202) 466-7378.

Polly Esther’s: The dance club offers prizes for costumes and drink specials all night during its “Nightmare on 12th Street” celebration Oct. 29. The party starts at 9 p.m. and there is a $10 cover. 605 12th St. NW. (202) 737-1970.