The Hardy Tree [via Russell_Darling]
Tower of Eben-Ezer, aka Flinstone Museum in Bassenge, Belgium [via House of Secrets]
“Steve Erenberg‘s favorite piece in his varied collection, the device was used to measure skulls.” [via Grufnik]
Zymoglyphic Museum [via deniseksf]
More from the so-called Radio Guy. [via e_muller]
Exploding Skull (The Scream), Cortlandt Manor, NY [via Grufnik]
For more, check out the Atlas Obscura blog, follow updates on Twitter, and peruse the Obscura Day landing page, which lists all affiliated events of cool, quirky things that went down last weekend.