The seven story addition introduces three levels of gallery space that plug directly into existing floors. Not only does this create much needed airflow, it allows the museum to remain open during exhibition turnover. Where the buildings meet, the architects inserted a kind of public spine that includes an atrium staircase. Currently installed in the middle of it is a flax-based textile that resembles a hulking animal pelt: the first museum project exhibited in the US by Klára Hosnedlová, a Czech artist. Soon, a sculpture commission by Sarah Lucas will open in the museum’s brand new outdoor plaza.