Photo: Dmadeo, CC BY-SA 4.0 via Wikimedia Commons
A museum dedicated to the history of the NYPD.
The New York City Police Museum (NYCPM) is a museum about the history and contributions of the New York City Police Department. Founded in 1999, the museum is located in Lower Manhattan in New York City. While one of the museum's primary focuses is a memorial to the September 11 attacks, the museum contains a wide range of information on the history of the NYPD. It also allows visitors to simulate a police firefight, and judges whether or not the shooting was correct, allowing civilians to have some understanding of situations that police face.
© OpenStreetMap contributors
formerly British Garden at Hanover Square
The historic heart of the Financial District and the home of the New York Stock Exchange, Wall Street is a metonym for American big business, stock trading and the entire financial industry, although most New York financial firms are no longer headquartered on the street itself, but housed nearby in new offices, and some have moved to Jersey City. A narrow street running downhill from Broadway to the East River, Wall Street was named for the wall that was built here in 1652 to keep Manhattan's indigenous peoples out of the growing Dutch settlement. The wall was demolished by the British in 1699. By the late 18th century, traders and speculators would gather under a buttonwood tree at the foot of Wall Street to trade informally - this was the origin of the New York Stock Exchange that was established in 1817.
Trump Building
A very impressive skyscraper with a green spire which was completed in 1930 and surpassed the height of the nearby Woolworth Building (see Manhattan/TriBeCa#See), making it the tallest building in the world until the Chrysler Building was completed just a month later (which in turn lost that title to the Empire State Building less than a year later). The building was leased by Donald Trump in 1995, hence its current name.
Located across from the Stock Exchange is this imposing office building which was constructed in 1914 and served as the headquarters of JP Morgan. The Wall Street Bombing of September 16, 1920 damaged the building, with shrapnel blasting several holes in the limestone facade. The holes are still there for any to see.
On this site on April 30, 1789, George Washington stood on a balcony overlooking Wall Street and was inaugurated as the first president of the United States. The old building on the site had been used as New York's city hall and had hosted some of the first congregations of the colonies in the lead-up to the American Revolution, such as the Stamp Act Congress. After the revolution the building, now Federal Hall, briefly housed Congress, the Supreme Court, and Executive Branch offices before the national capital moved to Philadelphia. The current building dates to 1842 and was used first as a Customs House, then later the US Sub-Treasury (millions of dollars of gold and silver were kept in the basement vaults). Today the building is maintained by the National Park Service as a museum dedicated to the history of the site. Guided tours of the building are available, or you can just walk in and look up at the rotunda and view some of the artifacts, such as the bible Washington used in his inauguration ceremony.