Don’t try this at the cathedral, kids! Photo from 1950 by Al Aumuller, via Library of Congress.

The Cathedral of St. John the Divine is building a temporary roller-skating rink in the nave of the cathedral to host a roller-skating party on Saturday from 1 p.m. to 4 p.m. Skates will be provided and the whole thing is free of charge.

The party is a way to promote the cathedral’s summer camp registration. The camp offers multiple sessions for children aged 3-13 beginning at the end of June.

The cathedral is the largest in the world (and it’s not even finished yet!). It hosts exhibitions and other events throughout the year — even a show of massive bird sculptures from Beijing.