![Located on the secondary elevation of the building, the vestibule leads visitors into its 35’ high vaulted lobby.](https://pentagram-production.imgix.net/wp/592c9de9681b4/la-mtb-plaza-03.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
Located on the secondary elevation of the building, the vestibule leads visitors into its 35’ high vaulted lobby.
![The vestibule is approached on either side by two staircases built to match the materials and details of narrower original ones.](https://pentagram-production.imgix.net/wp/592c9dea9dd5f/la-mtb-plaza-05.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
The vestibule is approached on either side by two staircases built to match the materials and details of narrower original ones.
![The materials and details of the new vestibule echo those of the original vestibule, and the glass entrance portal matches its height and width.](https://pentagram-production.imgix.net/wp/592c9dec103f3/la-mtb-plaza-06.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
The materials and details of the new vestibule echo those of the original vestibule, and the glass entrance portal matches its height and width.
![A frameless glass portal separates the new pavilion from the white marble walls of the original building.](https://pentagram-production.imgix.net/wp/592c9de8ac6a3/la-mtb-plaza-01.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
A frameless glass portal separates the new pavilion from the white marble walls of the original building.
![Two door lobbies lead visitors under the central skylight, past seating alcoves, to secure access controls, and the elevator lobby.](https://pentagram-production.imgix.net/wp/592c9dee4ca9a/la-mtb-plaza-07.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
Two door lobbies lead visitors under the central skylight, past seating alcoves, to secure access controls, and the elevator lobby.
![Views of the tall arched window to the elevator lobby are framed by the white conical walls of the circular rooflight.](https://pentagram-production.imgix.net/wp/592c9def43d8f/la-mtb-plaza-08.jpg?rect=%2C%2C%2C&w=640&fm=jpg&q=70&auto=format)
Views of the tall arched window to the elevator lobby are framed by the white conical walls of the circular rooflight.