Public or Private: Public

All

1st Dulwich Hill-Marrickville (Dame Dixson's Own) Scout Hall

6504 20th Ave NE in Ravenna

7 Roanoke Rd.

Albright Middle School

Altgeld Hall

Alys Stephens Center for the Performing Arts

Archimedes Laboratory Project, Gianni A. Sarcone ; Marie-Jo Waeber, Genoa

Atlanta HQ

Atlanta, GA

Auditorio Cendas

Bartlett Hall

Bengaluru

Berry College

Bethesda Regional Library

Bloomsburg Christian School

Botanic Gardens Dublin

Brighthelm Centre

Bristol Yard

Brookline Senior Center

Burlingame (location to be announced)

Butler University

C3, Centro Cultural de la Ciencia

Cafe Gioia

Cafe Verdi

Capital Educational University

Capital Normal University Beijing

Capitol Hill, Washington, DC and Labyrinth Games and Puzzles

Captain Melville

Captain Ridley's Shooting Party

Carthage College (room TBA)

Carthage College, David A. Straz, Jr. Center for the Natural and Social Sciences, Christman Pavilion

Cary, North Carolina

Casa del Quartiere di San Salvario

Castelveccana, Varese, Italy

CENDAS

Cervetoria Craft Beer Pub

ChiTAG Private Event

Christman Pavilion, David A. Straz Jr. Center for the Natural and Social Sciences

CIRCOLO MATEMATICO

Citta del sole|Dipartimento di Matematica e Fisica, Universita Cattolica, Brescia

Ciudad de Panama

Clintonville Farmers' Market

Clocktower Brew Pub Westboro

Clocktower Pub Westboro

Colegio Fabio Riveros

Colegio Nacional Buenos Aires

Com Calma

Cubberley Auditorium, Stanford University, CA

Davidson Institute of Science Education

Delta State University

Dipartimento di Matematica e Fisica, Universita  Cattolica, Brescia

Dipartimeto di Matematica e Fisica, Università Cattolica del Sacro Cuore, seat of Brescia

Dorset BH14 8UD

Ecole Hepworth Central School

Edmonton, AB, CA

Fairmont Resort

Fathauer Residence

Fionn MacCool's

Firefly Toys and Games

Fundación para la Educación ENOVA

Garden Grove, CA

Georgia State University Library

Goleta Library

GSU Library Plaza

Gwinnett County Public Library Lawrenceville Branch

Hall and Woodhouse, Bath

Hamilton's Restaurant, 1366 Beacon Street, Brookline, MA

Har-Ber High School

Holiday Inn San Francisco-Golden Gateway

Home of the Roberts Family

Hong Kong

Hotel Touring Club

Ibis Hotel

Inner West Womens Shed

Knowledge And Power Preparatory Academy (KAPPA MS 215x)

Koshland Science Museum

La Commune Libre d'Aligre

La Rana Dorada en Condado del Rey, Panama City, Panama

Leonardo's Basement

Letchworth Garden City

Library, University of Delaware

Lipson Cooperative Academy

Lower Manhattan

Ma Lingua Bar

Maersk Mc-Kinney Moeller Videncenter

MaMa

Mark's Apt

Mathema

Mathematical Association of America Carriage House

Mathematical Sciences Research Institute

McAllister Hall @ Berry College

Moulsford Village Pavilion

MTMS

MUHNAC

MUHNAC - Museu Nacional de Historia Natural e da Ciencia

National Botanic Gardens Dublin

National Math Festival

National Museum of Mathematics

Nelson Blachman BDay Restaurant - Rise Pizzeria

New York University

Odenville Middle School

Online

Online (Argentina)

Online (Brazil)

Online (France)

Online (Panama)

Online (Portugal)

Online (USA)

Parc Can Mercader

Paris

Port Street Beer House

Prestige Royale Gardens, Doddaballapur Road, Yelahanka

Princeton University Friend Center

Ruch Branch of the Jackson County Library

Salt Creek School District

Sandy Hook Middle School Round Cafeteria

SB Family School

Scuole Secondarie di Primo Grado

Sezione AID Crotone

Smith College

South Gwinnet HS

SSPG K. Wojtyla

St. Mary's College of Maryland

Stanford University

Stanford University, CEMEX Auditorium

Stanford University, Cubberley Auditorium

Starbucks Mumbai

Stella May Swartz School

Thaw Hall at Maryville College

The Bishop's Arms

The center for Innovation and Growth, Baldwin Wallace University

The Charles Grey

The Cottage Chinese Restaurant

The Cow

The Eight Belles

The Red Victorian

The Twisted Hop Pub

The University of Adelaide

The White Lion Public House

Tony Roma's - Winnipeg

Ulster Museum Belfast

United Kingdom

Universidad Complutense de Madrid

Universidad de Zaragoza

University of Arkansas, Champions Hall 4th Floor

University of Arkansas, Fayetteville

University of Bath

University of Girona

University of Northern Colorado

Utilitarian Conferences Gathering

Valhalla

Virtual Event

Vulture's Lane

Westlake High School

World Museum Liverpool

Ye Olde Gamery boutique at Md. Renaissance Festival

Zaragoza

Zealth Digital