Fall is a popular time for travelers and locals to walk the city of New York, and therefore it’s a great time of year to admire the architecture. Fittingly, it’s also the month of Archtober, a celebration of New York’s stunning architecture. Here, we look at the coolest new buildings in Manhattan.

Via 57 West

This futuristic-looking building on West 57th Street is a residential building in the shape of a tetrahedron. It’s a true sight, juxtaposing the tall apartment buildings surrounding. It was designed by the architectural outfit Bjarke Ingels Group, and construction was completed just a couple years ago.

432 Park Avenue

432 Park Avenue is the second-tallest building in New York City after One World Trade Center, coming in just under 1,400 feet. It’s also the fifteenth-tallest building in the world. The residential building cost $1.25 billion to construct, and the project was completed in December of 2015. Upon completion, many New Yorkers were divided on its design, infamously inspired by the city trash cans. Now three years old, the debate still rages.

56 Leonard Street

56 Leonard Street is a unique, jagged-block looking skyscraper in Manhattan’s Tribeca neighborhood. Swiss architecture group Herzog & de Meuron designed the glass tower to resemble a series of stacked houses. The residential building just opened in 2016.

Hudson Yards Sculpture

At the cultural destination Hudson Yards, English designer Thomas Heatherwick has a $200-million staircase that resembles a giant honeycomb. It’s built with pieces built in Italy and shipped to the states, and it consists of 154 flights of stairs. The wing of Hudson Yards will open in March 2019.

125 Greenwich Street

This supertall skyscraper is currently under construction in New York City’s Financial District. Located just two blocks away from One World Trade Center, and across the street from the Deutsche Bank Building, 125 Greenwich will be stand with tall company after its completion, which is estimated to happen in 2019.