Here are some Brooklyn Bridge 125th Anniversary celebration-related events taking place today:

Tour de Brooklyn: For the fourth year in a row, 2,000 bicyclists will ride all around Brooklyn in this leisurely 18-mile bike tour. Participate or just cheer from the sidelines. For advance registration, go to tourdebrooklyn.org. Family friendly. Free.

Brooklyn Bridge Walking Tours: At 11am, Ron Schweiger, the official historian for Brooklyn, will give a tour of the Brooklyn Bridge (meet at the Manhattan-side arch of Brooklyn Bridge). At 1pm and 4pm, Dave Fieder—aka “Dave the Bridge Man”—will also give tours of the landmark (meet at Brooklyn side of the Brooklyn Bridge). Free.

Lecture Series: In honor of the Bridge’s 125th birthday, the Brooklyn Historical Society is hosting lectures and readings at their headquarters (128 Pierrepont Street at Clinton Street, Brooklyn, 718-222-4111) each hour from 1–3pm. Additional lectures will be held at Surrogate’s Court (31 Chambers Street, Room 209, Manhattan) from 1–4pm. Seating is limited at all readings. Free.

Dance and Musical Performances: Dance and music groups will celebrate the spirit of the Brooklyn Bridge with performances from 1–5pm. Performance are free and are in Empire-Fulton Ferry State Park. Enter at Main Street.