Here are the latest Waterfront - North End - Financial District neighborhood notes:

Harbor walk

The Friends of the Boston HarborWalk and Boston Harbor Now will host a free history walking tour called “A History Written in Stone” from 10 a.m. to 12:30 p.m. on Saturday, May 18 meeting at the Leventhal Room at the Boston Harbor Hotel, 70 Rowes Wharf.

Scot Krueger will lead a combination virtual and walking tour examining the role that geology has played in the history of Boston. The program will begin in the Leventhal Center room with a 30-minute presentation describing the geologic history of the greater Boston area and some of the most common local building stones.

After the presentation, participants will walk north along the Harborwalk, examining building stones used along the waterfront and discussing the history and settlement of Boston, with an emphasis on the role played by local geology. Krueger will also discuss the timely issues of the Harbor cleanup in recent decades and the potential danger that sea level rise poses to the man-made land along the waterfront.

Registration is required for this free walk, online at www.bostonharbornow.org or by calling 617-223-8667.

‘Harriet Revere’

The Paul Revere House, 19 North Square, will present “Harriet Revere: A Revolutionary Woman” at 1, 1:45 and 2:30 p.m. on Saturday, May 18.

Re-enactor Diane Lent will take on the role of Revere’s daughter and reminisce about her father’s dramatic life, her 15 siblings and nieces and nephews and growing up in the colonial North End.

Admission is free with museum admission.

Further information can be found at www.paulreverehouse.org or by calling 617-523-2338.

North End churches

The North End Branch Library, 25 Parmenter St., will welcome author and historian Alex Goldfeld in a free presentation, “From Clark’s Square to Methodist Alley: North End Churches” from 10:30 to 11:30 a.m. on Saturday, May 18.

North End Historical Society president Goldfeld will give an illustrated presentation about Old North, New Brick, First Baptist and many other houses of worship in the neighborhood. Other Boston churches, like the Manifesto Church and Old West, will be included for context and comparison.

Call 617-227-8135 for more information.

Broadway musical

The North End Music and Performing Arts Center will present the Broadway hit “Once Upon a Mattress” at 1 p.m. on Saturday, May 18 at the Improv Asylum, 216 Hanover St.

The Music Theatre Troupe is presenting this specially adapted musical for young people to perform. Based on the Hans Christian Andersen fairy tale “The Princess and the Pea,” the story begins in a faraway kingdom long ago.

In an attempt to keep Prince Dauntless single, the queen decrees that only the princess who can pass her test may marry her son and no one else in the kingdom may marry until Prince Dauntless does. A true princess, Winifred the Woebegone, catches the attention of the prince, who falls in love with her and, in the end she is able to pass the Queen’s impossible test.

Tickets are $15 for adults, $10 for students and free for children, ages 5 and under.

Visit www.nempacboston.org or call 617-227-2270 for further information and to purchase tickets.

Bingo fundraiser

The Nazzaro Community Center, 30 N Bennet St, will host Bingo fundraiser from noon to 2 p.m. on Sunday, May 19 to benefit the North End Sons and Daughters of Italy.

Doors will open at noon and the games will begin at 1 p.m. There will be prizes for all bingo game winners. A large turnout is expected.

Call the center at 617-635-5166 for more information.

Boston Ballet story time

The North End Branch Library, 25 Parmenter St., will offer story time with the Boston Ballet from 10:30 to 11:30 a.m. on Monday, May 20.

Children and families are welcome to hear stories about a famous ballet or dancer. The story time is also supplemented with a movement experience that highlights major themes of the story. Boston Ballet faculty dance educators will lead the program, which is for children age 2 and up. Younger children will need parental supervision.

Call 617-227-8135 for further details.

Toulouse-Lautrec and Paris

The North End Branch Library, 25 Parmenter St., will welcome educators from the Museum of Fine Arts in a free program “Toulouse-Lautrec and the Stars of Paris” from 6 to 7 p.m. on Wednesday, May 22.

The library and museum have joined forces to present the vivid posters, prints and paintings in which Henri de Toulouse-Lautrec (1864–1901) captured Parisian nightlife in the late 19th century. This illustrated talk by an MFA guide will introduce patrons to the artist and the exhibition, which can be seen free of charge during the month of June with a Boston Public Library card.

Call 617-227-8135 for more information.

Photography exhibition

The Old North Church will host a photography exhibition “Rally Point: Bravery and Action” from May 23 to June 30 in the Clough House, Unity Street.

An opening reception will be held from 6 to 8 p.m. on Thursday, May 23 where visitors can mingle with the photographers, enjoy refreshments and learn about Old North’s community-facing plans.

The famous signal lanterns of April 18, 1775 displayed in the Old North steeple activated a network of riders who rallied their fellow patriots to action and ignited the American Revolution. This exhibit seeks to investigate what this caliber of teamwork and courage looks like in the 21st century. Blending the historic with the contemporary, it explores how teamwork, collective action and fellowship can promote active citizenship through poignant and powerful imagery.

Call 617-858-8231 or visit www.oldnorth.com for more information.

New pipe organ installed

An organ recital will be held from 6 to 7 p.m. on Friday, May 24 at St. Leonard's Church, 320 Hanover St.

To celebrate the installation of the new pipe organ at St. Leonard’s Church, there will be a free organ recital by internationally renowned maestro, David Reccia Chynoweth.

At noon on Sunday, May 26, the Mass will be celebrated by Cardinal Sean O’Malley, Archbishop of Boston. He will bless the new pipe organ and two wooden hand carved statues of St. Francis and St. Clare, founders of the Franciscan Family.

For further information call 617-523-2110 or visit www.saintleonardchurchboston.org.

Celebration of crafts

The North Bennet Street School, 150 North St., is hosting the annual Celebration of Craft, an exhibition of works by students and alumni, now through June 29.

The exhibit will feature hand-carved chairs and cabinetry, jewelry in silver and gold, ornate leather-bound books, violin making and more by alumni and students.

The exhibit is free and open to the public. Exhibit hours are from 9 a.m. to 5 p.m. Mondays to Fridays and 10 a.m. to 2 p.m. on Saturdays. It will be closed on Monday, May 27 and Friday, May 31.

For more information and to purchase tickets to the opening, visit www.nbss.edu or call 617-227-0155.

Photography tours

PhotoWalks will offer a walking tour of the North End from 1 to 2:30 p.m. on Sundays and Thursdays during May, meeting at the intersection of Hanover and Cross Streets.

The North End welcomed waves of immigrants seeking the American dream. Today, it is a popular hot spot famous for its busy restaurants, quaint cafes and crowded pastry shops. Highlights include Paul Revere’s house, Old North Church, Hanover Street, the Rose Kennedy Greenway and some hidden gems off-the-beaten-path.

Participants can learn how to take photographs with instruction on creative composition and getting the most out of a digital camera. Historical commentary on the sites will also be given.

Tickets are $40 for adults and $20 for youths, ages 10 to 17. Advance reservations are required.

Call 617-851-2273 or visit www.photowalks.com for more details and to purchase tickets.

Dark side of Boston

Boston by Foot is currently presenting guided walking tours of the darker side of Boston from 6 to 7:30 p.m. on Fridays and Saturdays. Participants should meet the guide at the corner of Hanover and Cross Streets, across from the Rose Fitzgerald Kennedy Greenway. Reservations are not required.

Visitors will hear the stories of misery, misfortune and murder based on true, historical events, such as the Great Influenza, the vandalizing of the Royal Governor’s House, the Molasses Flood and the infamous Brink’s robbery, all against the backdrop of Boston’s oldest neighborhood.

Tickets are $13 for adults, $8 for children if purchased online in advance and free for members. Add $2 for tickets purchased from the guide on the day.

For more information, visit www.bostonbyfoot.org or call 617-367-2345.

Homework help

Free homework help will be available from 4 to 6 p.m. on Wednesdays at the North End Branch Library, 25 Parmenter St.

Students in grades K through 8 are invited to drop in for homework help, academic support and mentoring. The Boston Public Library Foundation funds this Out-of-School Time program.

Visit www.bpl.org or call 617-227-8135 for further information.