Photo of Great Ape House in District of Columbia
Zoos

Great Ape House

📍 Northwest Washington, DC

4.3(81 Google reviews)

Great Ape House at the Smithsonian National Zoo features gorillas, orangutans, and other primates. The famous O-Line lets orangutans travel overhead between the Great Ape House and the Think Tank — visitors walk directly beneath the cables.

orangutansgorillasO-Line crossingfree admissionSmithsonian Zooprimate exhibit
★★★★★Featured review by Henry Goldberg

Great place near the entrance of the zoo to watch some primates. The orangutans always get me laughing and I could watch them for hours.

🏆 Family Action Verdict

Best for families with kids ages 4 and up who want an up-close primate experience. The O-Line crossing generates genuine excitement from children and adults alike — position near the pathway for the best overhead view. Reviewers note spacing could be larger for the animals, so manage expectations for enclosure size.

ℹ️ What to Know Before You Go

💡Watch for orangutans on the O-Line cables overhead — they cross voluntarily and the timing is unpredictable, so linger near the pathway
Look up when orangutans are moving across the O-Line — reviewers warn they have been known to relieve themselves mid-crossing
🎟️Near the Connecticut Ave entrance — a natural first stop when entering from that side of the zoo

💬 What Families Are Saying

View all reviews →
4.3

81 Google reviews

O-Line crossing thrills visitors45%
Engaging primate behavior35%
Free & near zoo entrance20%
H

Henry Goldberg

Great place near the entrance of the zoo to watch some primates. The orangutans always get me laughing and I could watch them for hours.

E

Ed Vigezzi

Great exhibit featuring many of the various apes, including gorillas and orangutans. Fun to watch orangutans move across o-line from the Great Ape House to the Think Tank. They do cross over the pathway, so make sure you are looking up to ensure that they do not go to the bathroom on you!!!!

C

Cristian Romero

Sinceramente me parece que les falta más espacio.

Reviews from Google

Overview

Great Ape House sits near the Connecticut Avenue entrance of the Smithsonian National Zoo, making it one of the first major exhibits visitors encounter. The resident gorillas and orangutans are the main draws, with the O-Line cable system a unique spectacle — orangutans voluntarily travel the overhead cables between the Great Ape House and the Think Tank building, passing directly above the visitor pathway. Reviewers advise looking up when the orangutans are on the move.

🕐 Opening Hours

Monday08:00 – 16:00
Tuesday08:00 – 16:00
Wednesday08:00 – 16:00
Thursday08:00 – 16:00
Friday08:00 – 16:00
Saturday08:00 – 16:00
Sunday08:00 – 16:00

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