Ancient Egyptian pyramids and modern pyramid-shaped structures are awesome, but what could be better than walking into an upside-down pyramid?

The Katimavik (means "Gathering Place" in Inuit) of the Canadian Pavilion at Expo 67 in Montreal, Canada, designed by Rod Robbie, opened in 1967

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Musée québécois de Culture populaire, Encyclopedia of French Cultural Heritage in North America and Expo 67)

The Geisel Library building of the University of California, La Jolla, San Diego, California, designed by William L. Pereira & Associates, completed in 1970

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via The UC San Diego Library)

Tempe City Hall, Tempe, Arizona, completed in 1971, designed by Michael & Kemper Goodwin.

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Franz Koeck and Tempe Preservation)

St. Petersburg Pier, St. Petersburg, Florida, designed by William B. Harvard Sr., constructed in 1973, closed in May 2013. It had an aquarium, restaurants, bars, specialty shops and galleries.

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Matthew Paulson and John McNicholas)

State Government Offices in Geelong, Victoria, Australia, constructed in 1978 and 1979

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Ben Nguyen)

The minimalist Hong Kong Coliseum (also known as Hung Hom Coliseum), Kowloon, Hong Kong, completed in 1981

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Wikimedia Commons)

Slovak Radio Building, Bratislava, Slovakia, designed by Štefan Svetko, Štefan Ďurkovič and Barnabáš Kissling, completed in 1983. The 271 ft (82.64 m) high building has a concert hall and used for regular broadcasting since March 1985.

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Miroslav Petrasko and Mark Turner)

The Ministry of Interior, Riyadh, Saudi Arabia, opened in 1990

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Wikimedia Commons and Ministry of Hajj)

The glass and titanium-panelled Conference Tower of Tokyo Big Sight (Tokyo International Exhibition Center), Ariake, Tokyo Bay, Japan, opened in 1996.

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Morio, Nemo's great uncle)

The Pyramid on Central, an office building in Phoenix, Arizona, designed by Tomasso Engineering

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Erica Chang and Chris English)

Hanoi Museum, Hanoi, Vietnam, designed by GMP, constructed between 2007 and 2010

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via GMP)

China Pavilion at Expo 2010 (also known as the Oriental Crown), Shanghai, China, designed by He Jingtang. After the Expo it was converted to a museum, and it was reopened as the China Art Museum two years ago.

These Upside Down Pyramid Buildings Seem to Defy Gravity

These Upside Down Pyramid Buildings Seem to Defy Gravity

(via Wikimedia Commons and Kwong Yee Chong)