William III of England — 1680s color oil painting
Photo Credit: By Gottfried Keller - Public Domain, https://commons.wikimedia.org/w/index.php?curid=7067652

Frederick Henry, Prince of Orange — Part of a series of four portraits of Princes of Orange at half-length originating from the Admiralty of Rotterdam
Photo Credit: By Workshop of Michiel van Mierevelt - Public Domain, https://commons.wikimedia.org/w/index.php?curid=2557224

William II, Prince of Orange —
Photo Credit: By Workshop of Gerard van Honthorst - Public Domain, https://commons.wikimedia.org/w/index.php?curid=8254658

William I, Count of Nassau-Dillenburg —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=7817638

William & Mary College Building, 1859–1862 —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=396504

Coat of arms of the College of William & Mary —
Photo Credit: By Source (WP:NFCC#4), Fair use, https://en.wikipedia.org/w/index.php?curid=58817682

Portrait of Joseph Henry —
Photo Credit: By Henry Ulke (1821-1910) - Public Domain, https://commons.wikimedia.org/w/index.php?curid=1274241

Lenz's Law —
Photo Credit:

Building of the Twelve Collegiums (Spb State University) — On Vasilievsky Island in Saint Petersburg, Russia
Photo Credit: By A.Savin (Wikimedia Commons · WikiPhotoSpace) - Own work, FAL, https://commons.wikimedia.org/w/index.php?curid=84369599

logo for Saint Petersburg State University —
Photo Credit: By 文麿 - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=27558719

The Old Observatory of Tartu Observatory — Completed in 1810. Friedrich Georg Wilhelm von Struve worked here.
Photo Credit: By BigFlyingSaucer - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=20206740