The Guggenheim Museum in New York

Illustrative photo, not from this event. Photo: Sam valadi, CC BY 2.0, via Wikimedia Commons.

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Museum of Illusions

60+ optical illusions and mind-bending rooms at 14th St and 8th Ave. About 45–50 minutes.

IS IT REALLY FREE?

Free. Paid: $35 adults (13+), $28 kids 5–12, $31 seniors, students and military; 4 and under free (official FAQ).

WHEN & WHERE

Every Sun, Mon, Tue, Wed, Thu, Fri, Sat · 10 AM–10 PM
Mon–Thu 10 AM–10 PM · Fri–Sun 10 AM–11 PM · quietest 4–9 PM
Museum of Illusions New York
77 8th Ave, New York, NY 10014
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An interactive museum with more than 60 exhibits on optical illusions and perception. The visit takes about 45–50 minutes with no time limit. Kids 12 and under need an adult. Book 2–3 days ahead.