History Buenos Aires Obelisk

History of the Buenos Aires Obelisk and its observation deck

Discover why the Obelisk was built on the iconic intersection of 9 de Julio and Corrientes, how it changed over the 20th century and how today you can visit its interior at the Obelisk Viewpoint with 360° views of Buenos Aires.

After learning about its past, you can buy official tickets to the Obelisk Viewpoint.

The origin of the monument

Why the Obelisk was built

The Buenos Aires Obelisk was inaugurated in 1936 to commemorate the 400th anniversary of the first foundation of the city. The project was commissioned to Argentine architect Alberto Prebisch, one of the key figures in modern architecture in the country.

Its location, the Plaza de la República, marks the intersection between Avenida 9 de Julio and Avenida Corrientes, two of the most symbolic avenues in Buenos Aires. From the very beginning, the Obelisk became a visible landmark from different points in the city and a gathering place for celebrations, demonstrations and massive events.

Architecture & curiosities

What the Obelisk looks like inside

The Obelisk reaches an approximate height of 67.5 meters and is built in reinforced concrete originally covered with stone. Inside, an internal staircase allows access to the upper area, where the four viewpoint windows are located, oriented towards the four cardinal points.

Throughout its history, the monument has gone through debates, refurbishments and demolition proposals. Over time, the Obelisk consolidated its status as an unmistakable symbol of Buenos Aires and as a central stage for sporting celebrations, cultural events, demonstrations and artistic performances.

From monument to viewpoint

Birth of the Obelisk Viewpoint

For decades, access to the interior of the Obelisk was restricted to technical and maintenance tasks. In recent years, the project to open the Obelisk Viewpoint to the public took shape, allowing visitors and residents to climb up and enjoy 360° views of Buenos Aires from the heart of the city.

Today, visits are operated with limited spots per time slot, assisted ascent by elevator and a final stretch by internal staircase. The full experience lasts around 20 minutes and can be combined with other activities in the city, such as the combo with the Buenos Aires City Bus.

View official Obelisk Viewpoint tickets

Timeline

Key dates in the history of the Obelisk

1936 – Inauguration

The Buenos Aires Obelisk is inaugurated in Plaza de la República as a tribute to the city’s fourth centenary. Since then it has become one of the most photographed and recognisable landmarks in the capital.

20th century – Reforms and debates

Over the decades, the monument has undergone maintenance works, changes to its cladding and public debates about its preservation and urban value, which ultimately reinforced its symbolic role.

21st century – Opening to the public

New tourism projects help to open the Obelisk Viewpoint to the public with regulated access, guided visits and safety protocols, turning the interior of the Obelisk into a new attraction.

Today – Viewpoint and 360° experiences

The Obelisk is now considered a panoramic viewpoint of Buenos Aires and a starting point to explore the city, combining its height views with sightseeing routes on the ground such as the Buenos Aires City Bus or Hop-On Hop-Off tours.