Harmony Museum on Mercer Street in Harmony features the Yobp-Eckstein village and train-trolley display in the Wagner House annex during regular guided museum tours, which are 1 to 4 p.m. daily except Mondays and holidays. Reservations are suggested for weekends and required for groups. Call 724-452-7341 or 888-821-4822, or visit www.harmonymuseum.org.PITTSBURGH

Nationality Rooms at the University of Pittsburgh’s Cathedral of Learning, 4200 Fifth Ave., are decorated in the styles of their holiday traditions through Jan. 14. Reservations for guided tours are accepted for groups of 10 or more made by prior arrangement. Tour fees are $3 for adults and $1 for youths ages 8 to 18. Call 412-624-6000.

Phipps Conservatory and Botanical Gardens, One Schenley Park, is presenting its winter flower show through Sunday. Nine of Phipps indoor gardens will transform to tell the tale of holidays past, present and future with topiary snowmen made of white Alyssum, hanging baskets, evergreens lit with tens of thousands of LED lights, three G scale trains and close to 2,000 poinsettias. Phipps is usually open daily from 9:30 a.m. to 5 p.m. and Fridays until 10 p.m. Admission to Phipps is $12 for adults; $11 for senior citizens age 62 and older and students with valid ID; $9 for children ages 2 to 18; and free for children younger than 2. Call 412-622-6914 or visit the website, www.phipps.conservatory.org.

Heinz History Center, 1212 Smallman St., concludes on Sunday the exhibit“Vatican Splendors: A Journey through Faith and Art” containing original works by Michelangelo, Bernini and Giotto in the largest Vatican exhibit ever to visit North America. Tickets are $20 for adults, $17 for senior citizens and students with college ID, and $13 for children ages 6 to 13: children age 5 and younger are admitted free. Tickets are available online at www.ticketmaster.com, or by calling 888-588-4226.

Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, is showing its usual fare of dinosaur bones and gems. “Winging It: An Experimental Gallery About Birds” continues through March 19. Museum hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays, with additional hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Admission, which includes the Carnegie Museum of Art, is $15 for adults, $12 for senior citizens, and $11 for students with ID and children ages 3 to 18, and free for members and children younger than 3. Call 412-622-3131 or visit www.carnegiemnh.org.

Carnegie Science Center, North Side, continues the Miniature Railroad and Village exhibit. Regular center hours are 10 a.m. to 5 p.m. Sundays through Fridays and 10 a.m. to 7 p.m. Saturdays. Admission is $17.95 for adults and $9.95 for children ages 3 to 12. Call 412-237-3400 or visit www.carnegiesciencecenter.org.

National Aviary, 700 Arch St., is open from 10 a.m. to 5 p.m. daily. Admission is $12 for adults, $11 for senior citizens, $9.50 for children ages 2 to 12, and free for those younger than 2. Call 412-323-7235 or visit www.aviary.org.